stay with your N900, in this time it is a best option on mobile market today, all of phone on market have a some disadvantages and you never be satisfied with any device 100 %. N900 is best for me, if you going to buy another phone xperia is my favorite it will have a upgrade in september to android 2.1. but without multitouch, built quality of device is very good and camera and touch screen is also good.