"If you have an HTC smartphone running Windows Mobile 6 or Windows Mobile 6.1, you may want to think twice before connecting to an untrusted device using Bluetooth. A vulnerability in an HTC driver installed on these phones can allow an attacker to access any file on the phone or upload malicious code using Bluetooth, a Spanish security researcher warned Tuesday."
I guess the only Bluetooth devices I connect to are my own, like my headset. For those of you that like going to airports and scanning for BT devices and seeing if you can connect to them, be careful. One of them could be a hacker. Be especially careful of those with labels like "Open Internet Device" or something similar to entice you to connect.