Virginia Tech's massively parallel Mac-based supercomputer is running. But what good is 7.4 teraflops of raw, user-friendly horsepower?

10. Icons on the dock bounce really, really fast.

9. Play your iTunes music at 100x normal speed.

8. E-mail software doesn't just filter spam, but also jokes you've already heard, stuff you've been cc'd for no reason, angry messages from your ex, etc., leaving only stuff you actually want to read.

7. Matrix-style special effects in iMovie.

6. The Beachball spins so fast it sucks nearby windows and icons into its vortex.

5. No air-conditioning needed, as the combined power of 1,100 Macs generates its own overwhelming zone of cool.

4. Comes with a built-in Super-DuperDrive

3. No digital camera needed. Just select "Celeste and me in Paris" in iPhoto, and it renders the entire photo from scratch. Saves on plane tickets, too.

2. Comes with sharing capability: uPhoto, uTunes, uMovie, uPod, etc.

And the number-one use for a Mac-based supercomputer:

1. So user-friendly, it does exactly what you want, before you know you want to do it.