1. World phone, although dual band, some countries (asia europe) run on 900 band, and in the US, its 1900 band. the signal is pretty good in champaign IL, can't wait to test it in Malaysia.2. Handsfree is very good, no el-cheapo black piece of ear bud, looks more like headphone(one). however, the jack is propriety so it is harder to find thirdparty replacements. but it is nice and clear on t-mobile.3. Nice sound! even though it is 40 chord polyphonic, for those of you who likes bells and bing bing tones, this is great, sounds better than those "broken radio" mp3 tones that sounds like cheap speakers. buy YMMV in this case.4.Size A bit small though for ppl with big hands, it is definitely a ladies phone, however, if you get a casing, then the size increases greatly, and it feels better in your hands. The buttons are not as tactile as other phones and flushed with the surface of the screen5. battery life is good - average (YMMV based on sound and etc), but charge is fast though, but i always leave it on for a good number of hours before i take it off. Charger is rated from 110 to 240V. good for world use, comes with its own socket adapter.6) tones in general not easily customizable as a whole, i hate some sounds like when i select stuff, but i love others(like keypad), but in the end, I just silenced it all because my hate was more than my fetish. the piano keypad tones were very nice though. =(7)external and internal SCREEN size is good, no comments, it is really a big bonus plus. love the side dedicated buttons for camera and scrolling, an alternative that i like. Really hate the big T-mobile button in the middle though.