most of the people on that forum don't really need that (as they [we] are bit on a geeky side) , but as bitcoin gains more and more popularity it have to have proper backup solution
(average windows user don't even know that there is such file as \Users\user\AppData\Roaming\Bitcoin\wallet.dat or if it is important)
next, before era of bitcoin clents that are actually working on your mobile devices, why not to have your bitcoin client with you on pendrive?
(after all you most likely won't need to send bitcoins unless it is linked to some other activity as online purchase, currency trading, and that mean you will have access to some pc)
so one simple solution - http://portableapps.com
can be copied into another place\medium with all necessary data
can be stored in truecrypt traveller disk container or to keep it simple in password protected zip archive (although that need additional shredder app for deleting wallet to be safe - still, good for holding some every day wallet with just few btc)
any opinions? (i can't create a pool - either not allowed in this subforum or may be due to fact that i'm still newbie)