[Xperia Play Android Development] Spectre51:
So the latest AT&T build .285 is currently unrootable as is any of the other countries versions starting with .62 and up. Here is my log from superoneclick in hopes that a DEV might take interest in trying to root this build:

* daemon not running. starting it now on port 5037 *
* daemon started successfully *
export PS1=""

$ export PS1=""

getprop ro.build.version.release > /data/local/tmp/output 2>&1
export TEMPRANDOM=89115
export PS1=END:$TEMPRANDOM;cat /data/local/tmp/output
2.3.3
END:89115export PS1=""

getprop ro.product.manufacturer > /data/local/tmp/output 2>&1
export TEMPRANDOM=18552
export PS1=END:$TEMPRANDOM;cat /data/local/tmp/output
Sony Ericsson
END:18552export PS1=""

getprop ro.product.model > /data/local/tmp/output 2>&1
export TEMPRANDOM=63403
export PS1=END:$TEMPRANDOM;cat /data/local/tmp/output
R800at
END:63403export PS1=""

getprop ro.build.version.incremental > /data/local/tmp/output 2>&1
export TEMPRANDOM=68114
export PS1=END:$TEMPRANDOM;cat /data/local/tmp/output
4m7P
END:68114export PS1=""

ls -l /system/xbin/su > /data/local/tmp/output 2>&1
export TEMPRANDOM=55258
export PS1=END:$TEMPRANDOM;cat /data/local/tmp/output
/system/xbin/su: No such file or directory
END:55258export PS1=""

ls -l /system/bin/su > /data/local/tmp/output 2>&1
export TEMPRANDOM=10110
export PS1=END:$TEMPRANDOM;cat /data/local/tmp/output
/system/bin/su: No such file or directory
END:10110export PS1=""

chmod 755 /data/local/tmp/busybox > /data/local/tmp/output 2>&1
export TEMPRANDOM=40829
export PS1=END:$TEMPRANDOM;cat /data/local/tmp/output
END:40829export PS1=""

/data/local/tmp/busybox whoami > /data/local/tmp/output 2>&1
export TEMPRANDOM=27973
export PS1=END:$TEMPRANDOM;cat /data/local/tmp/output
whoami: unknown uid 2000
END:27973export PS1=""

rm /data/local/tmp/boomsh > /data/local/tmp/output 2>&1
export TEMPRANDOM=15117
export PS1=END:$TEMPRANDOM;cat /data/local/tmp/output
rm failed for /data/local/tmp/boomsh, No such file or directory
END:15117export PS1=""

rm /data/local/tmp/sh > /data/local/tmp/output 2>&1
export TEMPRANDOM=53982
export PS1=END:$TEMPRANDOM;cat /data/local/tmp/output
rm failed for /data/local/tmp/sh, No such file or directory
END:53982export PS1=""

chmod 700 /data/local/tmp/zergRush > /data/local/tmp/output 2>&1
export TEMPRANDOM=18552
export PS1=END:$TEMPRANDOM;cat /data/local/tmp/output
END:18552export PS1=""

cd /data/local/tmp/ > /data/local/tmp/output 2>&1
export TEMPRANDOM=80970
export PS1=END:$TEMPRANDOM;cat /data/local/tmp/output
END:80970export PS1=""

export TEMPRANDOM=35822;export PS1=END:$TEMPRANDOM;./zergRush

[**] Zerg rush - Android 2.2/2.3 local root
[**] (C) 2011 Revolutionary. All rights reserved.

[**] Parts of code from Gingerbreak, (C) 2010-2011 The Android Exploid Crew.

[+] Found a GingerBread ! 0x00000118
[*] Scooting ...
[*] Sending 149 zerglings ...
[*] Sending 189 zerglings ...
[-] Hellions with BLUE flames !
END:35822export PS1=""
export PS1=""

/data/local/tmp/busybox mount -o rw,remount /system > /data/local/tmp/output 2>&1
export TEMPRANDOM=63403
export PS1=END:$TEMPRANDOM;cat /data/local/tmp/output
mount: permission denied (are you root?)
END:63403export PS1=""

/data/local/tmp/busybox mount > /data/local/tmp/output 2>&1
export TEMPRANDOM=18255
export PS1=END:$TEMPRANDOM;cat /data/local/tmp/output
rootfs on / type rootfs (ro,relatime)
tmpfs on /dev type tmpfs (rw,relatime,mode=755)
devpts on /dev/pts type devpts (rw,relatime,mode=600)
proc on /proc type proc (rw,relatime)
sysfs on /sys type sysfs (rw,relatime)
tmpfs on /mnt/asec type tmpfs (rw,relatime,mode=755,gid=1000)
tmpfs on /mnt/obb type tmpfs (rw,relatime,mode=755,gid=1000)
/dev/block/mtdblock0 on /system type yaffs2 (ro,relatime)
/dev/block/mtdblock1 on /data type yaffs2 (rw,nosuid,nodev,relatime)
/dev/block/mtdblock2 on /cache type yaffs2 (rw,nosuid,nodev,relatime)
/dev/block/mtdblock3 on /system/vendor type yaffs2 (ro,relatime)
END:18255export PS1=""

/data/local/tmp/busybox mount -o rw,remount /dev/block/mtdblock0 /system > /data/local/tmp/output 2>&1
export TEMPRANDOM=63106
export PS1=END:$TEMPRANDOM;cat /data/local/tmp/output
mount: permission denied (are you root?)
END:63106export PS1=""

/data/local/tmp/busybox mount > /data/local/tmp/output 2>&1
export TEMPRANDOM=64976
export PS1=END:$TEMPRANDOM;cat /data/local/tmp/output
rootfs on / type rootfs (ro,relatime)
tmpfs on /dev type tmpfs (rw,relatime,mode=755)
devpts on /dev/pts type devpts (rw,relatime,mode=600)
proc on /proc type proc (rw,relatime)
sysfs on /sys type sysfs (rw,relatime)
tmpfs on /mnt/asec type tmpfs (rw,relatime,mode=755,gid=1000)
tmpfs on /mnt/obb type tmpfs (rw,relatime,mode=755,gid=1000)
/dev/block/mtdblock0 on /system type yaffs2 (ro,relatime)
/dev/block/mtdblock1 on /data type yaffs2 (rw,nosuid,nodev,relatime)
/dev/block/mtdblock2 on /cache type yaffs2 (rw,nosuid,nodev,relatime)
/dev/block/mtdblock3 on /system/vendor type yaffs2 (ro,relatime)
END:64976export PS1=""

mount -o rw,remount /dev/block/mtdblock0 /system > /data/local/tmp/output 2>&1
export TEMPRANDOM=13842
export PS1=END:$TEMPRANDOM;cat /data/local/tmp/output
mount: Operation not permitted
END:13842