1 yes just follow the instructions and update to 3.0
You wont have any probs.
2 Yes you'll need to reinstall all your jailbroken apps like winterboard etc.. all over again. Some apps are not yet updated to work with 3.0 so not everything you had before on 2.2.1 will work with 3.0
Alot of jailbroken cydia apps have been update to work with 3.0 but not all of them and some have been replaced with other similar programs with different name. You'll have to do your own research and read before you install some stuff that are incompatible with 3.0
3 Im not sure about skype cause I dont use it but Im sure it works over wifi with 3.0
Not sure if theres a hack to use over edge
4 yes cycorder videos will be deleted once you do a restore so find a way to transfer them if you need them on your computer. Cycorder is compatible with 3.0
you'd have to download and reinstall it also.
5 no more installer. They're shutting it down and using cydia and icy. Both programs that install hacked/jailbreak apps to your device.
Personally I dont even bother installing icy, cydia works fine. Why have both, they basicly do the same thing and Im more comfortable with Cydia.
=marcbkk;79412571 – Does anyone know why this time DevTeam is having us do the firmware upgrade to 3.0 using iTunes when the last time I think I had done the upgrade using QuickPwn?
To be honest, doing any direct Firmware upgrades from Apple worries me about bricking my phone and getting stuck with a baseband which can’t be unlocked because it happened to me before with an earlier firmware upgrade. But it seems everyone is saying it is OK to do the 3.0 upgrade directly with iTunes this time?
2 - Will Winterboard and all its interface tweaks that I installed with it and other things like SB Settings, etc. all need to be reinstalled after I upgrade to 3.0?
3 - I am currently running the older version of Skype which still works with Yellowsn0W and have avoided upgrading to Skype version 1.0.3 as I heard it won’t work on a phone unlocked with Yellowsn0w anymore. In this case, if I upgrade to Firmware 3.0, will I lose the ability to use Skype all together?
4 - I am running Cycorder the video recording app free on Cydia. It has some videos in it that I recorded already and I was wondering if those might be lost when I do the Firmware upgrade to 3.0 since those video are files saved with a Cydia program and not a legal Apple program?
5 - I no longer hear anyone talking about "Installer". Now it just seems to be Cydia and something new I haven't heard of before called Icy?
I guess those are my main questions and if anyone can help answer them I would much appreciate it.