As these new WP7 devices become more and more available, slight differences are starting to become evident. One of those differences appears to be load times for video games, with the Samsung clearly beating the HTC 7 Trophy out in a head-to-head.
Much speculation has been circulating that the reason for the difference is the memory: the Omnia 7 uses Samsung's NAND chips while HTC uses internal memory with expandable microSD, causing slower performance. While this was "theory" a few days ago, it appears now to be accurate and we agree with that this is the culprit (but are open to other ideas).
So that may be the trade off folks: expandable memory vs. faster speeds. Which do you prefer? It is worth noting for U.S. customers that the HD7, Samsung Focus and Surround all have microSD cards (and probably Dell Venue Pro), so there's really not much choice. Only the LG Optimus is unconfirmed for its memory configuration.