The one and only homescreen is suspiciously lacking of anything; there is just a home button at the bottom left corner. First of all, tapping that "Home" button brings forth the main menu, which basically has a list with ten items on it -- pretty boring, but straightforward. To get to your Contacts and Phonebook, tap the physical call button and you are given access to the Hello UI, Missed calls, Contacts and the Dialpad.
Of particular note here is the Hello UI, a pretty cool way to keep your contacts in the "loop", literally. You have four colored dots on the left side (red, green, blue and yellow), each represents groups of contacts; you can house six contacts in any one group, plus tapping an individual contact brings up a myriad of communication options including Speed dial, Message, Delete and various others. What makes the Hello UI cool, is the fact that you can draw a loop around any number out of the six contacts and send them the same message -- or all six if you fancy.
Of course you have a normal Phonebook with a side tab (again with a miserly 600 entries only), to scroll thorough names alphabetically, call logs are available and a dialer. The dialer is not the most accurate dial pad I've ever seen -- if you go too fast it won't register some taps, so take your time while dialing. Speaking of which, the resistive screen overall fares about as well as the dialing pad does; it flows rather smoothly if you take things slowly, but the minute you start swiping away at full speed it starts to miss a lot of swipes and taps, so just take it slow and easy when using the touch capability. There is a sensitivity adjuster on board, but it doesn't do much good, no matter how you tweak it, it goes from usable to difficult-to-use -- the phone's default sensitivity setting works just fine.
Another fun feature in the UI is alert, which pop as elongated bubbles -- this happens in case of an incoming message, email, reminder or missed call. You can reply via the appropriate medium by tapping on the bubble or you can simply make them go away. While this may seem cool and quirky, you'll lose sight of who is doing what if you're in a mega chat session with 10 friends in WOW (World of Warcraft), about to go on a raid, so not the most elegant solution for such a scenario.
Messaging is of course fully catered for via SMS, MMS, email and IM. You can log-in with all major social networking sites such as Facebook, Twitter and MySpace; you can also set up your IM session via your mail account as every major provider is catered for including Gtalk (Google Talk) -- you also have access to Picasa and Flickr. Writing messages can be done via the tortuously tedious medium of handwriting recognition or the traditional D-pad. No virtual QWERTY though, you'll have to make do with just a physical one.