To crack the U.S. market I only see 3 options:

- Get firm commitment from one of the major carriers: I am surprised that Nokia is not able to fill AT&T's hole after them losing iphone exclusivity. There was (is?) an opening as AT&T needs something different as the iphone is no competitive advantage for them anymore.

- Flood the market with a cheap ($100 unsubsidized) smart phone via non-carrier channels. I.e use Amazon, Walmart, BestBuy to sell the phone and offer a store branded plan using T-mobile or AT&T technology (prepaid or post paid). Plan must be cheaper than usual smartphone plans, move market upwards from there.

- Long shot: Introduce new carrier ("Ovi") using peer-to-peer Wifi technology, sell phones based on VOIP / Wifi connectivity, open possibility to add legacy carrier specific sim card (t-mobile or AT&T prepaid). Not sure if they can pull that one off in a reasonable time (technology?) and make it profitable over all.

Well, and there is their current option: Ignore the U.S. and suffer from the hits they get from mainstream U.S. media. I am not sure how much longer they can take that...