According to this BBC interview with Danger’s CEO, the Danger Hiptop (updated with a colour screen) will be with us in Europe mid-year. The form factor and software is elegant but I can’t see the 18-24 year old target market shelling out $39 to $59 a month here in Europe for it since for comms at least so many people use simple SMS already. I would be tempted to buy it instead of a phone, though, for a modest premium.
While on the subject of mobile comms, Fastxt is also worth a look for IM and SMS addicts in the UK. They are on to a good idea – use Symbian’s software to provide a better instant messaging environment than traditional SMS/MMS and provide software that runs on several (advanced) mobile phones instead of producing your own hardware.