Because Apple are dicks and have disabled streetview on the 2.2 ipods in a pathetic attempt to make the iphone somehow more exclusive than the ipod, someone has had to come out and discover how to fix this 🙂

i’ve found the trigger so this is probably the easiest way for the time being…

1. get this file via ssh: /System/Library/CoreServices/SpringBoard.app/N45AP.plist
2. convert to xml at http://iappcat.com/plist/bin2xml
3. add

key>telephony /key>
dict>
key>maximumGeneration /key>
real>2.5 /real>
/dict>

underneath

key>standAloneContacts /key>
true/>

4. save then using that website again reconvert to binary
5. rename original file N45AP.old
6. copy new N45AP.plist in (make sure permissions are 644)
7. reboot ipod
all new Maps features work however you get a searching for service (replaces the word ipod in the top left) and waiting for activation message that pops up occassionally also music slot in prefs disappears (hjrry)

Hopefully someone can patch the frameworks or springboard which wouldnt require this to be done! Anyway if you’re desperate to try it out, thats all that needs to be done theres nothing wrong with stability or anything so you’re not going break anything permanately trying this out.
enjoy

[HowTo] Enable Street View on Touch 2.2 – iPod touch Fans forum