Similarly to my post about Kindle’s browser I looked how the browser in PlayBook is identifying self.
With the latest OS 188.8.131.528 the
User-Agent string is:
Mozilla/5.0 (PlayBook; U; RIM Tablet OS 1.0.0; en-US) AppleWebKit/534.11+ (KHTML, like Gecko) Version/0.0.1 Safari/534.11+
It contains “PlayBook”, so it’s easily grep-able.