[Desire HD Q&A, Help & Troubleshooting] Doktaphex:
Fair enough, maybe my first comment was a bit rash, but I didn't mean to appear rude. I shall try to answer some questions here:

GENERAL.

1. From my own experience all games advertised as multitouch are exactly that. I don't know about the version of PoP that you have installed from carrier, but I do find that odd.

2. Hard reset is a little perverse with the new "fastboot" hibernation feature that HTC have implemented. You have to go to MENU>SETTINGS>APPLICATIONS and disable "fastboot" (this is where confusion may arise as this is not the bootloader fastboot that allows images to be flashed)!! Now when you hold down the power button and get the option to power off, you will properly power off the phone. Next if you hold "VOLUME DOWN" and "POWER" buttons you will reboot into HBoot, from here the VOLUME UP/DOWN keys navigate the menu and POWER selects menu options.

3. Not sure about this one.

4. Since the release of FROYO you can go to MENU>SETTINGS>APPLICATIONS>MANAGE APPLICATIONS then select any app and move to either SD or to phone memory.

5. The folders on the SD card are mostly generated by the phone when you first insert it. The user guide and HTC sync software are there to move onto your PC for safe keeping. If you insert a freshly formatted SD card, the phone will make fresh folders such as DCIM for pictures, etc...

SYSTEM INFO.

1. Baseband is radio software.

2. Kernel is the linux kernel that is running below Android, this can be updated separately from the main ROM, radio etc. HOWEVER CAUTION IS ADVISED AS CERTAIN KERNELS WILL NEED NEW MODULES FOR HARDWARE TO FUNCTION CORRECTLY as you will see from the wifi modules bundled with the OC kernels.

3. Build number pertains to HTC's internal software version classification (some are built specific for carriers) they are generally released via RUU (ROM Update Utility aimed at windows) or OTA (Over The Air update received on phone [again sometimes carrier specific]). Release keys pertains to the fact that the firmware has been signed by HTC (I think).

4. Software number, basically as above.

OTA ACE with Radio.

1. As Above.

2. ACE: internal HTC name for Desire HD (also reportedly known as "SPADE")

ROOT DESIRE HD ETC.

Most of what you have written is pretty much correct.

MORE THINGS TO KNOW ABOUT.

1. http://developer.android.com/guide/developing/tools/adb.html

2. http://www.busybox.net/about.html

3. http://android-dls.com/wiki/index.php?title=Fastboot

4. eMMC write basically means that you can write to the internal phone (normally protected) memory such as /SYSTEM, this is what S-OFF allows you to do whenever you want. However, the modules that allow the ENG HBoot image to be flashed are what really accomplish this in the first place so theoretically you could just run that module every time you wanted to write to /SYSTEM but that would become very tedious very quickly. I can't really explain further, as I don't have the knowledge.

5. EXT2 or EXT4 are filesystem structures just like FAT, FAT16, FAT32, NTFS, HFS+ etc, EXT4 is newer and more advanced than EXT2 and therefore is more efficient. (kinda general but you get the idea. NEWER=BETTER)

6. ROM manager, find this in the android market, it is free, you install it on your phone and with the addition of clockworkmod it gives you the ability of flashing ROMs etc. USE WITH CAUTION.

I hope that this answers or clarifies most of what you have asked or said, please feel free to cut and paste any of this info into your first post so that we can actually consolidate this.

P.S. I too am a complete android noob and this is my first android phone, I have picked this info up mainly from this forum so all credit for information goes to XDA-DEVELOPERS.COM and not me.

Cheers,

Dok :D