The Siemens Pen Phone is a tri-band mobile phone concept with all the usual trimmings like contacts, calendar and messaging. Funky!

‘…thanks to the PenPhone�s integrated handwriting recognition facility, they can write their SMS messages directly into the mobile phone. Whatever they use to write on, the PenPhone will interpret their hand movements as written words and translate them directly into the SMS editor…It is not yet certain whether the PenPhone will be going into serial production.’