[myTouch 3G, Magic Android Development] Loccy:
These are entirely unchanged from the ROMs on the thread over in Dream land below (apart from one small fix for Exchange in version 1.0)

http://xdaforums.com/showthread.php?t=534479

These are JAC and Drizzy's ROMs, not mine - all I've done is unpack the ROM, change one file in boot.img to make it work on a Magic, and then repack it all and sign it. So we'll forego the sigfile saying "if you like my work please buy me a Ferrari". However, this whole thing is a bit of a faffy operation and not something that's simple to set up (although is easy enough once you have everything you need in place) so I thought I'd share and save others the grief rather than hogging all the fun for myself.

These have come about because I wanted a Hero ROM, but wasn't entirely satisfied with the best one available for the Magic (Qtek's, IMO). It worked well, but the swap version dropped SMS messages sometimes, and the Compcache version was buggy, sluggish, and wifi didn't work.

JACxHERO seems to have a number of the same issues that Qtek has - dropped SMS messages (it seems that the lack of memory on the device causes the SMS/MMS process to die), and the Compcache version has broken Wifi. I said earlier on that I thought this version was oddly sluggish, but after setting up Compcache with backing swap I am loving it. By far the best Hero ROM on my own setup so far. No Wifi is a drag but I can live with it for now.

JACHeroSki 2.7.4.r2 in contrast is an older build, and one suspects they're using an older kernel; it has a working Compcache setup, but no conventional swap at all, and no multitouch. A good call if you have a slow SD card, can live without multitouch, and positively have to have wifi.

Bottom line as I see it:

Fast SD card? Use JACxHero v1.2. But you might lose SMSes (that said, no-one's reported any yet - I just worry about lack of memory issues)

Slow SD card but need wifi, and can live without multitouch? Use JacHeroSki 2.7.4 r2.

Slow SD card and want multitouch, or you insist on Compcache for other reasons, and not interested in wifi? Use JACxHero v1.0.

I personally am running 1.0 and after not being keen initially, it is growing on me and turning into a keeper. I only ever use wifi when at home and can do without it there, so it's not a problem for me.

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JACxHero Version 1.2 - seems fast, but no Compcache

http://www.4shared.com/file/123726235/aa3ee695/jacxhero12-pn-magic.html

JACxHero Version 1.0 - Compcache, WiFi doesn't work properly. Works well if you enable backing swap and up the swappiness. See my user.conf on page 3 of the thread.

http://www.4shared.com/file/123729537/191c816a/jacxhero10-pn-magic.html

http://www.4shared.com/file/123821706/7250ac6b/jacxhero10-exfix.html (version with Exchange fix - I haven't tested this but it should be fine)

(version 1.1 didn't seem to be enormously different than 1.2; I did try it and have a working .zip but don't see much point uploading it)

JACHeroSki v2.7.4r3 - Compcache works by default, as does wifi. Note, though, there's no multitouch in the browser, which is a bit fail.

http://www.4shared.com/file/123798395/c61c220a/jacheroski274r2-pn-magic.html

NOTE THAT ALL OF THESE NEED THE USUAL THREE PARTITIONED SD CARD! i.e. fat32/ext2/swap