The Invisible Android App Revolution: Apps Being Updated for Installing on SD Cards

There’s a small unnoticed (as far as I can tell) and welcome revolution going on in the Android app world: Some app updates include the ability to install the updated app in external memory (usually a microSD card).
One of my biggest complaints about the T-Mobile G1 (the first Android phone released) was its inability to installs outside of system memory. This limited me to about 20 apps on that phone. This app installation location limitation did not get fixed until Android OS 2.2 (Froyo) was released. Unfortunately, the only phone running Froyo at the moment is the Nexus One.
Two recently updated apps noted that they could be installed on an SD card. These apps are Google Sky Map version 4.3.0 and Wifi Analyzer version 2.4.3. I certainly hope more app developers join this revolution. And, I hope more Android phones get the Froyo update soon.