Transfer to/from the host PC isn't wireless I don't think, but the Logitech IO is essentially a "normal" pen (no wire) that digitally captures your writing (on special stationery) which can then be transferred via the recharge/docking station.

Logitech have since sold the IO product to Destiny Wireless (UK).

http://www.destinyplcshop.com/acatalog/notetaking-solutions.html

My wife got one of these after it appeared on the Gadget Show, you just clip the reader to a pad or any peice of paper and write away. To access your notes you just plug it in via usb and either save as a .jpg or convert to text in word.

http://www.bmcdigital.co.uk/catalog/browse/zpen/daneelec-digital-zpen-light-with-1gb-memory

Hmmm... from the looks of the pack from Destiny Wireless it seems that the Logitech IO included is the dockable one, not the wireless model (there are 2 separate versions).

Another company in the UK offering digital pen solutions is Magicomm. It seems that their G303 pen is both dockable in a USB cradle, but can also communicate via bluetooth with your phone.

They have a consumer site that seems to offer the same sort of things as the Destiny Wireless one:

http://www.originote.com

Firebox are doing that there Z Pen for £99.95.

Apparently "...when it’s all safely downloaded, pick out any drawings from your writing, and at the click of a button you can convert all the scruffy script into tidy, organised type...".