Same here. Cydia doesn't load and usually gives me a '502 Bad Gateway' error, multiple sources not loading.
If cydia crashes is that when you get the sad iPhone pic?
No, it's not tethered. JD must have had an older version of the jailbreak.
Spirit fixed that.
thankfully jailbreaking doesnt seem to have slowed down my iPhone 4. Only using 5 icon dock, sbsettings and BiteSMS at the moment though. Debating winterboard so that I can use custom sms tones again
I'd leave Winterboard alone for the time being.
I tried a few things last night and it didn't like it.
I restored mine to factory today.
There's very little point in jailbreaking the iPhone 4, for me.
I might go back once it's more stable, but I'm happy with the phone, as it is. Awesome already.
iOS 4.0.2 out now
DONT UPDATE IF YOU WANT TO KEEP YOUR JAILBREAK