new to ipod Touch

Hello, I have been a blackberry addict for quite sometime, I just bought my 1st apple device .. the ipod touch, I really like it, I'm told that its identical to using an iphone just with out the phone capabilities .. I'm not sure if that's true or not but I'm posting for a totally different reason. like I said I love my Storm and the calendar sync. i know i can sync with Google to ipod Touch but are there any other applications or programs out there you guys are using to sync you're calendars with, like outlooks, or the default vista calendar? any suggestions would be fantastic. thank you