So I have the iphone 3g and in general, i lov the features and the phone. However, I'm sure many of you are aware of the lagging issues on the phone. I have the newest firmware however it still has a bit of lag. I'm thinking about selling the 3G on ebay or something like it and then spending around $100 or so (which I believe is the difference on ebay) and just getting the 3GS to hold me over until my next upgrade in about a year. For those of you who have experienced both of these phone, would you say this is worth it , or would I just be wasting time and money?