i chose #1, the reason that the N900 caught my attention is because people in a local forum have been discussing how they have been leaving their laptops at home since having the N900. i'm not disappointed and it's more than what i expected it to be (i'm a regular user who's surprised by what devs here have been able to make the N900 do).
the E51's a better phone than the N900, so that's the one i use to make calls and SMS.