When the latest version of The GIMP (2.6.2) became available I couldn't remember out what version I had installed on my USB stick. The splash screen for The GIMP doesn't say what version the loader is starting. To find out I have to go check the About The Gimp menu option. As it happened I had version 2.6.1 installed.
In fact none of the splash screen tell you what version is starting. Would be nice if all the splash screens included version information.
Later I noticed that the splash screen for Firefox says "Firefox.,". That don't look nice.
That would be a nice idea.
But I just go to "[x]:\PortableApps\[appname]Portable\App\Appinfo\Appinfo.txt" to find out what version I'm using.