Availabot (Schulze & Webb) is a fab idea – one of those collapsible toys, but it’s wired to an IM client and pops up/collapses based on the presence of an IM contact.
It’s great glanceable technology. My mate Paul mentioned it – it’s a (pre-production) product produced by Matt Webb, whose talks we’ve listened to in Reboot and most recently at BarCamp last weekend…he’s a great speaker, I’m fascinated by his ideas…