commentary A year from now, Research in Motion may not exist. A little while ago, …

A Dark Knight edition of the Windows Phone-powered Nokia Lumia 900 is going on sale this week, tying in with the Batman movie hitting silver screens this summer. The bat-powered blower is available exclusively from Phones 4u from 1 June, and has the iconic Batman logo etched into its matte-black rear. Not the most subtle calling card for a masked …

When Apple unboxed the iPhone 4S it also uncorked Siri — the sometimes smart-arsed robotic genie/butler that can fetch stuff from your calendar, tell you what the weather’s like or do a web search for Kevin Costner’s age. Now it has a challenger — the Galaxy S3‘s S Voice. Siri was not the first voice-control app on a phone — …