Move over Blackberrry Messenger, iPhone has iMessage… Very slick! It works on the iPad (1 and 2) and Touch (3rd and 4th gen) as well…

For iPhone users you can send “texts” and “multi-media” messages to fellow iPhone / iPad / Touch pals for free.  Nice little perk if you are concerned about text message charges.

Here are some good tutorials on C-Net to check out:

How to install iOS 5 – you need to install iOS 5 before trying iMessage…Set aside 20 minutes to 2 hours to do this…

FAQ: What’s iMessage and how does it work?

How to get started with iMessage