I use it for all the things that the pc is too slow for (usually to boot-up.)
Net (if needed fast for eg. banking), text print
(for a quick line with good programs/skills),
Getting fast Digipictures to see or modifying our advert for prices. MP3 or stuff to play relabiable for hours. And for FUN!
Not very modern stuff but if You have a pc open all the time... Well it gets infectded somehow and warms our world with Bill Gates ruling the fleet in 2100 costing the electric bill first.
Then a good Retro-Game makes the rest of the time perfect.
Not hating Vista too much but, God I hate it sometimes;)