First Live Messenger:

Microsoft...what the heck happened between version 2.5.30 and 2.5.32 that made the application size jump from < 1 MB to ~3 MB! Not cool for devices that have limited amount of storage for applications.
Next App World is telling me that I have an update available for Blackberry Messenger:

Apparently BlackBerry is taking a page out of Microsoft's playbook and offering to let me upgrade my application from 5.0.0.57 to 5.0.0.57...all while increasing the application size by over 1 MB! At least Microsoft tries to convince me that I'm getting something for that extra size by bumping up the version number.