From Google lays out mobile future (Silicon.com):

Google Mobile group product manager, Hugo Barra, added a great user interface – like Apple’s iPhone – and a flat data plan are key in making mobile internet appeal to consumers.

A great UI and flat data plans…. Right on…

Also:

Chang said that Google prefers to avoid developing apps which require elements to be downloaded to the device as this makes the user experience slower and less attractive.

Instead, the company can focus on innovative web applications such as Google Grand Prix – the mobile software suite which includes search, email and location based services.

ceo