iPhone contract with AT&T is up on Wednesday

My contract with the iPhone 3G is up & I need an upgrade my iPhone has cracked glass & the headphone port makes a scratchy sound. And ever since I upgraded to iOS 4.x, my phone has run very sluggish.

I'm thinking about switching to Android but there are so many options I just can't decide to act now or wait and see what cool phones come out soon.

 I'm thinking about the Motorola Atrix because it has dual-core but I'd like to wait until there are more dual-core phones to choose from before pulling the trigger.  I'm afraid that as soon as I do there will be a new phone that I wish I would have waited for.