You truly have to see each one in person to get a proper sense of one over another that could meet your needs/wants. The operating systems differences alone might be a deal breaker for some. For the record, none of the phones you've listed are *great* at multi-tasking, in the sense that it really does a good job of replacing a PC/netbook/laptop.
What I suggest is you get your hands on at least two of them and report back with specific questions on their functionality.
I am planning to buy a Smart Phone, when I say smart phone I mean like really a technologically advanced phone which is currently in the Market. which is not just restricted to Applications and Music. I am looking out for like a complete phone,Maybe a P.C substitute kind of thing(Mobile Computing). Which has the best operating system, Good Internet surfing capabilities, Good Emailing options like a Qwerty Keypad (Must).So I am looking out for like a complete phone, Versatile phone, Great in Multi-Tasking.
Between the Nokia N900, Motorola-Droid and Sony Erriccson Xperia X10. Which one should I go for? Great Screen, Fantastic Display to watch Movies, Videos is also one must requirement that I have.
Who should buy which phone ? is there like a classification that can be done after understanding someone?s requirement. I am kind of keen to buy between N900 and Xperia X10 but am confused?anyone to the rescue?
I am not so much in to Android?Android... as people are harping about these days. For me Android or Maemo it is gonna be a new experience a first time thing. So I will have equal emmotions for both of them till I use it. Can you guys please suggest out of these three.
One More thing I wanna think beyond the iphone for gods sake
Thanks in Advance !