Found an answer to one of my questions about de-odexed verses odexed, burried on the xda forum.
Q - "What is the advantage? Isn't the odexed version just an "un-themable" version of the de-odexed?
A - when a ROM is deodexed, a lot it's not resigned correctly... pre-installed apps like sprint voicemail/tv/nascar, google maps, flash, etc won't update correctly. will need to flash updates for those apps... PITA. Odex everything updates normally... I also dont use themes, so no need for an deodexed version."