my-gti.com

2700 – VW Cars
2702 – Toureg
2704 – Skoda Columbus
2706 – T5 Transporter
2708 – T5 Multivan

Firmware download and installation details are here.

Version 2700 / 2702/ 2704 / 2706 / 2708 Firmware for the Volkswagen RNS 510 and the Skoda Columbus has been released. So far it appears to be only bug fixes and the 2660′s new features remain

Voice Control (requires microphone – see Volkswagen RNS 510 Microphone Connection for voice control)
Speed Limit Display
Stability Improvements
Faster [...]