When the Android 3.0 (Honeycomb) SDK was released back in February, one of the first things extracted from the hive was a nice set of high-resolution wallpapers. There were nine of them in total, and their resolutions were all at least 1920 x 1280 each: great for your computer, but not so great for your HTC EVO 4G.
If you downloaded and saved the images as is to your SD card and then tried to manually set one as your wallpaper, then you may have found that you were unable to select the entire photo (i.e., the "crop box" doesn't always cover the whole thing and sometimes can't be stretched). So you might have had to resize the original file or crop it according to parameters of the Gallery or whatever other image/wallpaper viewer you use.
Getting a Honeycomb wallpaper on your EVO isn't supposed to be a frustrating task and thanks to GFX Android's Honeycomb Wallpapers app, it doesn't have to be.
The free app packages all of the new wallpapers into a standard picker that shows up in the regular "Select wallpaper from" list when you long press an empty area of your home screen and tap Wallpaper (or press Menu > Wallpaper).
Honeycomb may not be cleared for an official landing on the EVO, but these wallpapers can still climb aboard with ease.