Also I'd like a sense of how many users have their Eris rooted as opposed to not. Comments?
I rooted it shortly after the official 2.1 release came out, in May 2010, after it became clear to me that the official software had some functionality that was not all that productive to me. The two worst were that dialing starts taking dozens of seconds to respond to commands to make a call, and (particularly galling to me) calendar events will fire off reminders every five minutes if you do not clear them. This became a problem for me when I was driving but, worse, there is a "snooze" control on the lockscreen that apparently was being sensed each time I tried to stop the reminders. This bothered me to no end.
I think there are a great many people on this forum who rooted the phone. That said, I think compared with the general population, it is probably a small percentage.
The funny thing is that I often went back to a close-to-stock ROM (xtrSENSE of xtrROM) because the phone is quite fast with these ROMs installed and everything just works. That said, I really think that I spent at least 2/3 of my time after I rooted running either a Froyo or Gingerbread ROM, and that's knowing that the first Froyo ROMs were not available until about 4 months after I rooted the phone.
When I look at my phone on the computer with a USB cable, I see folders. In which folder would I put music i want to listen to with the Music app, and which file formats are supported?
You really can put them into any old folder that you want to, though I think it's best to keep files organized by artist/album, etc. I always put my music in a media folder. So, I had a top-level media folder, and in that I had a folder for music, where all of my music went; a folder ringtones, for customized ringtones; and notifications, for customized notification ringtones. I also had a photos folder there for wallpapers and other photos. However, I don't think that you need to be that organized (with the exception of ringtones and notifications - they need to be in folders with that name somewhere on the micro-SD card.)
Supported audio/video file types are non-DRM MIDI, M4A, QCP, AMR, AAC, AAC+, eAAC+, WAV, WMA, MP3, EVRC-B, MPEG4, H.263, H.264, WMV. (From
HTC Mobile Phones - DROID ERIS Verizon - Overview )