If you bought a WiFi-only Galaxy Tab, you probably assumed you were getting the same seven-inch slate that others have been enjoying since November, just without a 3G radio and burdensome two-year contract. Turns out it's worth poring over those specifications on the rear of the packaging. We've yet to get a confirmation from Samsung, but it appears the company swapped out its Hummingbird processor for an older "1GHz Cortex A8" chip with a slower GPU. The Galaxy Tab carriers have been hawking packs a PowerVR SGX 540, but some folks over at the XDA Developers forums have discovered that its WiFi-only sibling is rolling with the previous-gen SGX530. The specs on the Samsung site also lists Bluetooth 2.1 instead of 3.0 -- yet another significant downgrade. We guess the company had to make some trade offs to hit that $350 price point, but we don't have to like it.