I am looking at both (and ratings in the App Store don't seem to be very valuable, IMO) and trying to determine if DTG is really sufficently lacking as some people say. QO seems to have the upper hand on capabilities right now, but you still have to off-load your attachments to their servers. That seems like a pain and waste of time to me. DTG is still missing Excel editing - which is supposedly on the way - but I really like the way they handle Exchange attachments right on the iPhone. Anyone here have experience with both? Or has the latest DTG w/Exchange?