I got a Sony T610, a month ago from Amazon. Prior to that I had Nokia 3650.Here is a comparison of the two phones:1. Reception ... Sony is definately better (when compared with the same service provider)2. Usability ... 3650 is much better (nothing beats the nokia menu when it comes to ease of use, its intutive and complete, sony is cryptic and incomplete)3. Size ... no argument here, the small and sleek T610 is better ... though the 3650 is not as big as it looks i.e. when using it, it fits comfortably in ur pocket/purse4. Features ...a. Infra red, blue tooth are there on both and are just as goodb. The camera picture quality is better in the 3650. Initially i was of the opinion that camera was more of a fancy addendum ... but after having a camera phone i am never going backc. The 3650 is a web enabled phone i.e you can browse the net using this phone (not there in T610) ... though i rarely used this featureTo sum it up, both phones have their pros and cons ... decide what factors are important to you and see which phone provides them better ... hope this helps!