Integration with existing web technologies was a major consideration, as Stephan Herhut from Intel Labs mentions:
River Trail is available today as an add-on to the Firefox web browser.
Summly: An Award Winning Mobile App's Journey to the Cloud with Five-9s Availability on a Shoestring Budget
Eugene Ciurana Mar 11, 2014
Christophe Achouiantz Mar 11, 2014