Today only, Glenn Corpes has Ground Effect (iTunes Link) in the iTunes App Store for FREE for a limited time. Deal expires March 1, 2010.

Ground Effect is one of the most fun, exhilarating, addictive & visually impressive games to arrive at the App Store. Think flying, think driving, think racing, then think again! Skim land and seacapes in your high performance ekranoplan at low altitude and breakneck speed, supported by a cushion of air.