Low-cost tablets are a dime a dozen in the Android world, what with no name offerings from Ainovo to budget stalwarts like Archos. But there's always room for more competition and Energy Sistem seems intent on elbowing its way to a prominent place at the bottom. A mild update to its existing slate lineup, the Energy Tablet i8 keeps the same 8-inch LCD display and 1,024 x 768 resolution (in 4:3 aspect ratio) of its
