All4Cellular offers this Screenshot Illusion Case for iPhone 4 and 4S in Purple/Black for $1.95. Coupon code "A4C17OFF" cuts it to $1.62. With free shipping, that's a $2 under our mention from last spring and the lowest total price we could find for this design by $3. This back cover features an iPhone front "screen shot". (It's for protection -- keeps other smartphones from sneaking up your iPhone.) Deal ends March 19.