there seem to be four factors holding these networks back: Users are hesitant to join unless their friends are already on board, businesses won’t join up without a critical mass of users, many phones still can’t handle the necessary technology, and there are privacy and behavioral concerns. via digital.venturebeat.com Excepting the smartphone adoption issue, these barriers seem just like ...

... to try it right now, see Early Access Release Channels for download instructions." Would-be Mac Chrome users are also asked to provide their e-mail address so Google can notify them someday when a beta-quality version of Chrome for Mac becomes available. DigitalBeat has a longer report on Brin's comments. David Coursey tweets as @techinciter and can be contacted via his Web site.