When I first upgraded my x50v to windows mobile 5 I was very upset with a few things and had to go back to 2003SE till these problems were fixed.

Here is a list of my 5 issues with Windows Mobile 5.

1 - USB Card Reader Capability
*UPDATE (Softick Card Export II adds Beta support)
2 - Full Backup and Restore Capability
*UPDATE (Sprite Backup releases Beta)
3 - Bluetooth support
4 - GAPI performance (we need a GAPI tweak for Windows Mobile 5)
5 - OS Glitches (too many to count)

Im waiting for these issues to be addressed before I head back to Windows Mobile 5.

I'm pretty much with you on that... except I had to wait for the sprite beta to backup my WM5 before I could go back to 2003SE.

Actually I am starting to go off WM5 even more now. I liked the navigation softbuttons and the cool new additions to the built in software. The native WM5 GAPI is also much more solid and I never got graphics glitches - but then it ran about the same speed as the GAPI tweak 2 does at a 200mhz CPU setting.

The real dealbreaker for me is that I mainly upgraded to WM5 to get more free memory - none of the RAM is used for storage any more so it will all be program memory right? In practice the OS takes away my BIS and still leaves me with less RAM to play with. I doubt that's something they'll ever fix.

Oh and we still can't go 3 weeks without the battery running out and losing data, because they don't allow the x50v to go into full sleep mode. Mind you, we can do a sprite backup to SD card and then pull the battery out. It can go a few months without use, then stick the battery in, restore the sprite backup, and it's good to go with nothing lost.

Fatal Error: Please perform a hard reset

Bluetooth support? That's not strictly MS's fault - their stack ALWAYS sucked, compared to Broadcom's. The x50v used the Broadcom stack, which has always had more features than Microsoft's, but was harder to program for. Dell, for some reason, decided to go with the MS BT stack when they did the WM5 upgrade, whereas HP and Acer, among others, stuck with the Broadcom stack... and worse yet, Dell didn't customize the BT stack at all to add any extra functionality.

We know it's possible, as other manufacturers have added extra functions to the MS BT stack, but Dell has yet to do so. Supposedly, there's a rumor that says they're going to fix this.... but of course, you'd also have thought that they'd have at least let you use the BIS as storage memory and let you take advantage of that 'persistent memory' feature of WM5, right?