Shouldn't be too bad. The original B2G dev phones were the Nexus S, which doesn't look that far off in terms of processor specs. It's been 6+ months since I've

Shouldn't be too bad. The original B2G dev phones were the Nexus S, which doesn't look that far off in terms of processor specs. It's been 6+ months since I've done a build for the Nexus S but the perf was generally acceptable but dropped the occasional animation frames like the earlier gen android phones.