A new version is out for PS3Filer, this time from the original author. Although the program's emulator still doesn't support sound, the file browser has several new features. Here is a rough translation of what's new in v0.0.4:

• Still has not sound
• It has a new file browser interface (folders are listed in the left side panel, files are listed in the right side panel)
• File browser still has not scrolling when you have many files in a folder
• Selecting files (up/down) is now faster
• Buttons in NES emulator seem to have a faster response
• If you press GREEN or BLUE options it seems like the filer trying to read a local HDD path

If file scrolling is what you prefer though, you should take a look at Dark-Show's own update to the program, in case you missed its release.

Download: PS3 Filer v0.0.4