It has been a few months since we last talked about it, but BOLT has emerged again in a second preview beta.  The slick looking and very fast web browser alternative has been updated with a number of enhancements and is available for download. New for this version are adaptive streaming for video, a social tab for sharing to Facebook, and general UI fixes and improvements.  If you want to take part in the beta, head to Bolt’s website and use the code ‘androidguys‘, just like the last time!