Google Rules

Google (the company) is known for its friendly and simple way of communicating with its users. Simplicity is key, and this is evident on all kinds of levels.
For example, the System Requirements page for Google Earth says: "Windows-based desktop PCs older than 4 years old may not be able to run it", a much more useful and informative statement than the garbled stream of acronyms ("Windows 2000/XP/ME, Pentium III or IV (512MHz or higher), 780MB disk space") commonly found. This page does get down to these dirty details, but only as a failsafe, that is, if the "old PC" wasn't clear enough.
Sometimes, Google's messages get downright playful, which may be a bit too informal for some. I personally like it, but I wouldn't have written an error message like this one (as found in GMail):