Pocket-Lint: The number of people with two phones in the UK is quite significant. When you factor in business users, drug dealers and people who are having affairs, it's probably a decent chunk of the market. Those people would all benefit from having a phone with two SIM cards slots.
So enter the ViewSonic V350. It offers support for two 3G SIMs in one, normalish-sized handset. It runs Android 2.2 and so has access to a multitude of apps and access to a large and passionate community. But is it worth considering?