MSDN has recently published an interesting article on the use of Digital Ink Signatures. It covers how to capture a signature and the implications of storing same. Useful for human workflow applications with a Tablet PC endpoint.
By the way, you can get the most recently posted MSDN tech articles as an RSS feed here.
Also, my boss Frank Arrigo is recovering in hospital from an illness - you can send him best wishes to the Hospital's email system here. He'd like to hear from you. He's recovering well and should be out next week. I hear he's already blown away the record for number of electronic "get well" cards to the hospital! Way to go Frank. Miss you mate.