I have been playing around with some new geeky stuff lately.
I have been addicted to Twitter for a few weeks now. I have no idea why it is so cool, but so far I just can't go a whole day without adding a few posts on what I am doing. I have it linked to my mobile phone so I simply send a text message and it gets instantly added to Twitter. Easy.
Microsoft's folder synchronization tool Live Mesh is pretty cool too. It allows you to keep your files synced across all of your computers. It also serves as an online storage for your files. I haven't seen Google's cloud storage offering yet, but so far this one is pretty slick.