I’m no fish expert, so it meant nothing to me when I saw the pretty looking fish on the Windows 7 beta wallpaper. Then I saw this CNET report. Turns out it’s a Siamese fighting fish also known as a Betta fish, pronounced “beta”. Presumably, therefore, it won’t be the default wallpaper in the final release?
Update: I hadn’t noticed – there are also 7 bubbles!