[MDA III, XDA III, PDA2k, 9090 Software Upgrading] spkr4thdd:
Go for it...

OK, I'll try to give you a different slant on things....

WM5 utilises persistent storage (as stated above) which means that, should you find yourself in the unfortunate position that your BA has run out of juice you'll retain all your data (even the RAMDisk contents contrary to some other peoples posts). This is not the case in WM2003SE. If you let the battery run down in WM2003SE it's adios amigo! And start all over again.

WM2003SE while quite stable, is not perfect, especially once you have several apps installed and use it aggressively. WM5, while technically only in beta for this device (as they are mostly hacked/patched/ported ROM's) can prove to be a very stable platform. I have used nearly every version of WM5 on this forum to try and find the 'right' one... and I use my BA constantly, for business purposes and satnav guidance.

Comparing the 2 OS's is like comparing Windows XP and Vista... XP is a proven system, Vista is not, so direct comparison would be unfair to either... as for performance, with the tweaks now found in the newer WM5 ROM's I find my BA responds as well, if not better, than with WM2003SE, battery consumption is a little higher but that can be resloved with any of the CPU throttling apps available...

I wholeheartedly recommend the AKU 2.6 version of Helmi's ROM. I went away on business recently with WM2003SE installed and while away flashed this version of the ROM. My reason for being back with WM2003SE prior to this was the sluggishness of my BA after a while of running WM5. During my absence the Page Pool fix reared its head and all seemed to be good in the world. While AKU3.2 is the newest version of WM5 it has inherent compatability issues with much of the software available for WM5, even Microsoft's own such as Voice Command (an app I actually make use of!). The AKU2.6 ROM doesn't have these issues, and with the paging fix does not become sluggish at all.

9 weeks on and my system has only frozen once, and that was with a 'hacked' piece of software so I don't blame the system... I have not had to reflash once, and I honestly don't remember having to soft reset... I have yet to find a WM5 compatible app which doesn't work with it, and I use it day in, day out.

In short, I jumped on the WM5 bandwagon some time agao and was very disillsusioned at one point, so much so that I returned to WM2003SE... However I missed the smoother GUI, the much better handling of popups and alerts, the tighter integration with Outlook, the better operation of ActiveSync and so forth, so I came back to the fold, and I will not be downgrading again...

If you use Push Email anything after AKU2 (or is it 2.3?) is a Godsend, and believe me, the overall feel of the OS is much smoother, it feels like a 'pocket pc', rather than a really gucci phone!!

I use my BA to play media, read newsfeeds, browse the web, check/send email, and all the other stuff my mates do on their laptops, and if you have the right settings for your provider there should be no issues with connectivity... I have A2DP set up as well so I have a stereo BT headset for music/video etc... I run TomTom, Garmin Que, OziExplorer...

Oh! And I use it as a PDA/Organiser, my life is on that brick, and believe me, it gets hammered!!

I also have an XDA Exec now and to be honest I prefer the BA... although I do love my IQ (but Smartphone is a whole different kettle of fish)!!

I hope this gratuitous plug of WM5 helps sway your decision ;)