Coming up on a month with my MDA, and still loving it.

Found a couple of quirky applications that made the device crash and refuse to boot, requiring a full reset and restore (arghhhhh!!). Other than that, awesome.

I'm running the following apps on it:

Newsbreak (RSS reader)
Weatherbug (yes, the smartphone version works just fine on the MDA!!!)
SPB Weather
SPB PocketPlus
Kevtris (very good FREE Tetris clone)
MemMaid (for cleaning things up)
SPB Backup
Resco Radio
Resco Explorer
Resco Keyboard
Opera Browser
Handmark Pocket Express
TCMCP media player
Smartskey
Total Commander
ViewCommander (for connecting to my Web enabled PTZ cameras)