"The ultimate goal is to get Dart into Chrome. I hope you all agree," said Lars Bak, a Google programmer who has worked on both V8 and Dart, in a Google I/O talk on Thursday.
But Microsoft and Mozilla, which make the other two of the top three browsers, don't care for Dart, and when Bak tried to drum up support for Dart in Chrome, the Google I/O audience rewarded him with only a single, somewhat plaintive "Woo hoo!"
"We question whether it's possible to get a factor of two [speedup] in V8 in the near term," Bak said.
Google is developing Dart in a separate, experimental version of Chromium called Dartium. And Google has found an ally in Adobe Systems, which has released a tool that lets Flash programmers create Dart software.
One hesitation about adopting Dart is that it will add another "runtime" to the Web -- another programming foundation that all browsers will have to support for as long as there is a Web. New runtimes add new complexity, software bloat, and attack surface.
"Web developers are really pushing the limits of the platform," Lund said.
Updated 2:06 p.m. May 17to correct how long Lund and Bak have been working together. It's 13 years.