If you have your mobile phone with you all the time, surely that's where you'd expect to see your social networks enabled? Well, even with dedicated mobile sites, and the occasional java utility to get to sites such as Facebook and MySpace, users aren't biting (reports the LSE in this PDF report). With only 47% using their mobile to check email or browse the web there's a lot of work to go before you can address the tiny 7% that use the mobile for social network usage.

Perhaps we need a social netork dedicated to mobile? Anyone know of a good one? More at MoCoNews.