I've been usign the p900 and have been waiting anxiousliy for the P990i.
after a long Time (1 Year!!) the phone was finally released and I bought it right away. But BIG DISAPPOINTMENT, the phone is crap!
First of all, the progress from P900 to P990 is very small. The applications (such as Camera) look a bit fancier, the Organizer has a better weekly view and that' s about it.
The Set up of MMS, WWW etc. is very difficult and does not work with Configuration SMS from your Mobile Provider (for me, www does still not work).
Synchronisation does not work properly, for Instance, Notes are not transferred from the PC to the Phone (very bad, if you had a P900 and would like to transfer your data via synchronisation).
The Phone crashes all the time and has to be re-booted.
The Speakerphone is totally stupid. Instead of being able to set to speakerphone while your phone ist dialling you have to wait until the other party picks up the phone. This way you have to leave the phone on your ear while driving unless you have a connection. Then you have to push several buttons to set to speakerphone. And if you want to set it back to "handel"-Mode, the phone crashes and you have to reboot it!
The Applications are not very intuitv to use. For someone who has used a PXXX Device before, it ist very strange.
The Camera is a dissapointment. The 2 megapixles seem to be attractive. But I don't know what kind of lese they have built in the phone. The Pictures are not a big excitement at all. A little bit better than with my P900.
The Joystick to navigate is very sensible and you often navigate wrong because it reacts so easily.
the Battery-Life is very poor. If I forget to charge it at night, I will be out of Power by Noon next Day.
The Keyboard is very good and easy to use. A big Improovement from P910! Also the Screen is very sharp and Bright.
I do not recomment to switch from a P900 or 910 to the P990. It is not a big Improovment. And the two old devices run much more stable.
For someone who wants to get Into the Smartphone World, I would Suggest to wait until the Software Update Service and the Online Help from SE are online.