The iPhone obviously dominates the mobile market when it comes to multi-tasking. You can turn your iPhone into a numeric keypad, a bedside clock and even a remote light switch. But that doesn't mean there aren't awesome things happening with other platforms. Take the AV/Shadow for the Blackberry, for instance. This hardware-and-app double team helps your 'Berry to act as a remote, allowing you to control your TV, your Blu-ray player and up to 14 other devices...
This kit will set you back $100, making it significantly more expensive than most iPhone apps (except the "I'm Rich" one, we all know), but it's not inflated.
One of the reasons for the price tag is that you'll need the included hardware to be connected to your equipment in order to use the remote application. Your Blackberry communicates with that via Bluetooth, with a range of up to 30 feet.
Get one here.