a) A good colour screen - I wouldn't expect it would be as good as my iPaq 4150 but something close would be essential.
It's got a roughly 320x240 pixel 262k colour screen. I've seen better on the top PDA models, but it isn't bad at all.
b) A reasonable talk/standby time - probably isn't going to be as good as my Nokia 6310i I imagine.
It quotes 16 hours talktime, but it won't last as long as a 6310i.
c) Full synchronisation with Outlook 2003 (via USB 2.0 connection preferably - must be able to sync e-mails, schedule, tasks and contacts).
Not sure about e-mail as I don't own one myself. The other items are certainly sycnable though.
d) File viewers (eg. Word/Excel)
One of the new features for the P910i, over the P900, is the addtion of the QuickOffice software suite. You can view
and edit Office documents with it.
e) Ability to store pictures (JPG) and a good picutre viewer.
Possible, yes.
f) Ability to store video files (AVI/WMV/MPG) and a good video file player
The basic player is pretty crap. However,
smartmovie is well worth the money and plays Xvid/Divx. WMV isn't going to be possible though, since it's a closed Microsoft proprietary format.
g) Travel software (eg. Mobimate Worldmate - I use this on the iPaq and it is awesome).
Yes, this kind of software is available.
h) Electronic wallet software (I already use Ilium EWallet on my desktop and my iPaq PocketPC - it stores my credit cards information, Web site logon details, banking details etc - very useful software). I don't think Iliums EWallet is available for this phone but other eWallet software may be.
I think there's one built in, but I'm not too sure.
i) Some sort of 'list' software to create, for example, shopping lists.
It has a pretty decent notes app.
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j) A music player for MP3 or (preferably) Ogg Vorbis format would be desirable.
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As mentioned, yes this is possible.