I think you're slightly confused. The system builder is not targeting Bitcoin. There are two separate situations:
For SHA2-256/Bitcoin, ASICs have been around for almost a year. No one is or should be using GPUs to mine them anymore. The system builder is not targeting this market.
For scrypt/Litecoin, ASICs are not available, and there are no definitive plans for them. It's even questionable whether scrypt ASICs can make significant gains over GPUs due to the complexity of the algorithm. This is the market the builder is targeting, and it is not one that will be obsolete any time soon.