The homebrew updates keep on rolling in! Now we have Crazy_C, the same guy who became popular in the PS2 homebrew scene, bringing us an update to his awesome Dosbox project, a DOS emulator for PSP. This isn't actually a full release as the update deals more with binary and patch tweaks. Crazy_C explains it best in his post:

New binary and patch with fix to input mapping, more debugging for ir keyboard and some changes to the recompiler that I'm fairly sure that I've worked the bugs out of but if anything breaks with this that worked before, tell me..

For the uninitiated, DosBox is an emulator enabling users to run DOS programs on their PSPs. The important links and downloads are right below. It's also important to note that the "binary" download below is actually an ELF file, it should be converted to Eboot format first. You can also try renaming the file to "Eboot", but if that doesn't work, you'll have to convert it via a third party programs. Have fun with DOS!