It's always nice to see an already decent deal sweetened -- which is just what's happening over at AT&T these days. The company is now offering refurbished models of the 16GB iPhone 3G for $149 with a new two-year contract. That's $50 less than the previous price, so head over and save yourself a few bucks if you're so inclined. The 8GB refurb is still on offer at $99 with a two-year contract. It looks like the deals only apply to the black models, so you'll have to cough up full price ($299 and $199, respectively) for a new one if only white will do.