from press release: http://press.nokia.com/PR/200303/894912_5.html
Draw your own multimedia message with the stylish Nokia Digital Pen
The Nokia Digital Pen enables consumers to create, store and share personal and colourful messages. The pen is easy to use; users can draw a picture or write notes in their own handwriting on specially printed paper and transfer them to a compatible mobile phone using Bluetooth technology. The image can be displayed on the phone and can be sent as an MMS to a compatible mobile phone or an email address.
The Nokia Digital Pen can store up to 100 A5 pages in digital format. This can be transferred to a compatible PC by putting the pen in the Connectivity Stand for Digital Pen, which can be connected to a PC via the USB interface. The Nokia Digital Pen can also support the use of services developed by 3rd parties. The Nokia Digital Pen SU-1B is planned to be available in the third quarter of 2003.