Lately we’ve been doing some comparisons between mobile apps of the same name and how they differ on a variety of different mobile platforms. You might expect applications of the same name to be pretty much the same on any platform, but frequently you’ll see some surprising differences. This time we’re going to take a look at Microsoft’s Windows Live Messenger and how it works on Nokia’s Symbian OS, Apple’s iOS, Windows Mobile 6.5, Blackberry OS 6, Microsoft’s Zune HD and Windows Phone 7.

For a couple other comparisions, see Bing Mobile vs. Bing Mobile and OneNote Mobile vs. OneNote Mobile.