3.2.2 got you down? There's no jailbreak seemingly in sight, you can't downgrade cuz you forgot or didn't have the chance to save your SHSH with Cydia, you've tried lots of tricks but nothing works. Well, to pass the time, I suggest trying to UPGRADE! That's right, even YOU can upgrade to 4.2 beta, and the best part, you don't have to have a developer account or be registered with apple to do it!! Simply download the iOS 4.2 beta relese (google, it's easy to find). Then, here's the "big secret": option-click the UPDATE button in iTunes and select the 4.2 beta IPSW and let it run. Viola! You got multitasking and other fun features. Now, it's not as good as a jailbreak, but it will at least satisfy you until there is a public release of 4.2 and a jailbreak.
Hope this Helps!!!