Is there any way to "crack" an ipod touch like you can with an iphone?
Yes u can jailbreak a itouch using the same software used to jail break a iPhone , I used Redsnow theirs also a software called greenpoison or snowbreez google it and u can find instruction on how to jailbreak your itouch
Greenp0ison for 4.1
Wait until 4.2 IOS is out. A jail break will follow soon thereafter. The updated OS is due before the end of November 2010.