Fender has introduced a beefed up version of the G-DEC amplifier now with 30 watts of power in a slightly larger cabinet. They've added some additional capabilities including some new tones and better MIDI features, but it's more of an incremental improvement rather than a complete make over.
For those not familiar with the G-DEC, it's a great practice amp with built-in rock tones, midi backing tracks and a digital tuner. While some of the built-in tones are a bit on the generic power-metal side, this is still a very fun amp for a beginner or intermediate player who wants to improve their playing. Also check out the MyGDEC web site for additional midi files and documentation.