Ending today, All4Cellular offers this Dexim P-Flip Foldable 2,000mAh Solar Power Dock for iPhone, model no. EL121::BLACK, for $9.95. Coupon code "A4C17OFF" cuts it to $8.26. With free shipping, that's $2 under our mention from three weeks ago and the lowest total price we could find by $32. It purports to add six hours of talk time, ten hours of video, ten hours of games, or 40 hours of music. It's compatible with the iPhone 3G, 3GS, 4, and 4S.