[nattaggart]

Really awesome story, I can relate. One thing I learned after the umpteenth time falling in the pit of picking a technology: do it in PHP, it's fast, I'm good at it. It's going to invariably be the wrong choice, which will become apparent at some point in the future, but in the early stages of a project speed is the most important thing. Your technology is a tool to create the product, not the other way around.

One more thing, you should spend more time defining the product/business before you begin implementing or even thinking about technology. Bounce the idea off of smart people, use usertesting.com (I'm not affiliated with these guys but I use them a lot) and do market research. You don't want to realize that your idea sucks after a few weeks of development because you'll be discouraged from fixing it at that point.