My question got lost in the thread about the 3.2.1 jailbreak, so I'll ask it here. 
Is there anything that backs up Cydia applications so they can be restored after a jailbreak? I saw PkgBackup, but all that accomplished was wasting some money. The first time I tried to do it after buying a replacement iPad it kept telling me there was no backup saved, even though there was one and I was staring at it.
I'd really love a tool that accomplishes this, are there any?
Is there anything that backs up Cydia applications so they can be restored after a jailbreak? I saw PkgBackup, but all that accomplished was wasting some money. The first time I tried to do it after buying a replacement iPad it kept telling me there was no backup saved, even though there was one and I was staring at it.
I'd really love a tool that accomplishes this, are there any?