• mobile web growing 8x faster than desktop web did in the 1990s
• "Mobile is ramping up faster than any other technology we have seen in the past" Mary Meeker, Kleiner Perkins
• 3x more smartphones activated every minute than there are babies being born
• 1/5 ppl check their phones before getting out of bed
• over half of american's will have a smartphone by end of 2011
• 29.6% of restaurant queries are mobile
• 15.4% finance and insurance
• 79% of large online advertisers to not have a mobile optimized site
• compare mobile site now to desktop sites 10 years ago (retailer adoptions)
• 11% of mobile users have actually screamed at their phones over frustration at buying on mobile
• 61% of users unlikely to return to a mobile site if they've had trouble viewing on a phone
• 40% said they'd visit a competitor's site after a bad experience on your site
• research has shown that web retailers could increase consumer engagement by 85% with a mobile optimized site

Cross industry best practices

1. keep layout simple
2. design for thumbs, not mice
3. prioritize content
4. use uniquely mobile features
5. make is easy to convert

Source