Omnia i900 XXHJ4/MSHJ1
S2U2 v1.37 still having freeze on wake up issues.
Fade (adventure game few years old, but still good!) Works but graphical corruption due to widescreen display.
Deja-vu 1 & 2 (adventure games) Work, but some graphical glitches due to widescreen display.
Microsoft reader, doesn't seem to be any to register it anymore with microsoft so all my paid for ebooks from my old ppc are now worthless! good old microsoft!

(not an omnia specific issue, but still annoying).
Diamond Hologram, works once you've copied the htc DLL files to windows folder and replaced the hologram exe file with the one patched for omnia.
Youtube player , works fine.
UITweaker, works fine.
Pocket uno v1.5, works fine.
Pocket sand v0.8.3, works fine.
Quickmark DS v3 (2D barcode reader), works fine.
iNigma reader (2D barcode reader), doesn't work, various graphical and memory access problems.
Keyswop (softkey changer), works fine.
WVD (mobile video downloader/manager), works fine.
Dice 2 (accelerometer dice app), works fine.
Pocket slay (Strategy game, recommended!), works fine.
spbScreenshot, works fine.
Weather bug direct, works fine.
Weather watcher mobile, works fine.
oopdreams pocket mahjongg, works fine.
That's about all i can remember for now, not re-installed everything since the last hard reset, so hopefully this thread will stop more of those annoying moments! Keep up the good work!
Mitch