Done? You have to reinstall all your Cydia apps, don't you? I mean, they don't magically reappear.
Of course I have to reinstall them. They aren't supposed to 'magically' reappear, because the means to get them has disappeared!
I haven't done much to my phone, and frankly, don't need to at this time. My only concerns are OpenSSH/OpenSSL, and MyWi.
After that, I'm good; YMMV.
BL.