You guys have all heard about that other MP3 player right? The one that squirts? Well, it turns out you can 'squirt' using your BlackBerry as long as you have a Pearl or an 8800. You can read the feature length story here or the BlackBerry Blog short and sweet version here:
Turn on Bluetooth on both devices, set the trusted field to 'yes'.
From the sender: Home screen --gt; Media. Select the file and then click 'Menu --> Send Using Bluetooth'.
On the recipient: Home screen --> Media. Select the appropriate media type and then click 'Menu --> Receive using Bluetooth. Click save.
Oh yeah, and the BlackBerry also comes with this other feature called "doesn't suck".