What about something more like:
It was a pleasure to briefly meet you at the ... event last Thursday. We discussed the available options for taking my iPhone app, ..., to the market.
If you have a moment for further discussion, ...
I added the third line to give the option of extending the question further, but would consider it optional as you didn't have anything similar in your post. This also seemed like a more business/formal discussion so I push the formatting in that direction.
I'm assuming that this is an email correspondence. In that case modern email clients will display your name in the from field, so it isn't necessary to put it again in the body.