Nickll9009 has released his application Transformer for 2.X firmwares. Remember it is a beta. This application changes your iPod Touch to make it look like you have an iPhone (gives you the Phone & SMS app, gives you fake signal bars etc).
To install it:
SSH the .app folder onto your iPod Touch and write the following commander on MobileTerminal (all in 1 line)
chmod -R 0755 /Applications/Transformer.app & /Applications/Transformer.app/Tools/Transformer
To download: CLICK ME