GBPUSD stays in a upward price channel on daily chart, and remains in uptrend from 1.4813 (Jul 9, 2013 low), the fall from 1.6996 could be treated as consolidation of the uptrend. As long as the channel support holds, the uptrend could be expected to resume, and one more rise to 1.7200 area is still possible. Key support is at 1.6465, only break below this level could signal completion of the uptrend.