upgrade to ios4 on ipod touch issues

[penym]

Hi,
Yesterday I tried to install ios4 on my 2nd gen ipod touch. The upgrade went ok half way and later due to some error it keeps on rebooting continuously.
In itunes I get following error.

iTunes could not connect to this iPhone because an unknown error occured (0xE8000065).

The device I am using is not even an iPhone..!
I am currently not able to boot my ipod. I tried reset several times, tried using different pc.. but no use.
Any help appreciated.
thanks

[4DThinker]

Mine updated fine, but now my Touch (2nd gen) runs slower. Painfully slower. I've got a first gen I haven't updated and side-by-side the difference is obvious. The iOS4 Touch is slower. The UI is slower. Apps run slower. Graphics have lost their fluid dynamic.

[thatdarnfish]

Me too. Is there any way to go back to the earlier OS?