Android, iPhone, AIR desktop app, "location-awareness", etc. -- these are extremely "thinking big" technologies to embrace and incredibly extensive with many possibilities.

Personally, I am excited about mobile payments or sms payments. I foresee many vertical social networks that will sell products consumer to consumer. Easy and inexpensive mobile payments will facilitate this.

Checkout RevolutionMoneyExchange.com and Obopay.com as examples. Dolphin can partner with them see more or build its own mobile payment system. Very exciting indeed.