Intial version OSD software with production/Beta/Gamma hardware (64MB SDRAM and 16MB FLASH) support is released here(all units from ThinkGeek are in this category). This release has stable A/V encoding and decoding support and many other new features, while there are a few known severe deficiencies and to-dos.
To upgrade, simply download the upk file into media card, then from OSD use 'File Browser' to find the downloaded file and click XIM, select 'Upgrade Software' to upgrade. After clicking, there might be a few seconds 'choke' (fixed in this release), then system will reboot and upgrade will automatically start.
Here is a copy of the release note, 2006-09-19 OSD 3.18-0.13
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[WHAT'S NEW]
1. Text input support.
2. File browser copy/paste/rename support.
3. CF card hotplug support.
4. IR learning GUI and low-level support.
5. Splash screen and boot message on status bar.
6. Playback history support.
7. Web software upgrade download client completed.
8. Software watchdog support.
[WHAT'S FIXED]
1. Settings survives power recycle and connects to funtions.
2. IR/RTC driver fix, faster Remote Control response and accurate RTC.
3. GUI widget memory leak fixed.
4. 3.0 MMC support.
5. Various A/V recording/playback fix.
6. SD card writing performance improved.
[KNOWN ISSUES]
1. PAL support is not added in yet, which is currently under development.
2. MP4/AVI file constructor is broken, can only record into ASF format in this release.
3. USB Host is still unstable.
4. FF/RW support in complete.
5. Big picture zoom in will crash the system.
6. Console not works properly.
7. Various A/V recording/playback details (time stamp, ID3 display etc) are to be completed.

Comments
It's not working for me. It
It's not working for me. It says "Check package" and then "Sorry, package error!" I'm using a 1 Gig CF card, i just formated it for this, its FAT32.
Same problem here! SanDisk
Same problem here! SanDisk 32MB CF card. Tried re-downloading package to no avail.
What filesystems are
What filesystems are supported for the flash media cards and USB drives? Can the CF/hard drive be formatted with FAT32 or should it be a Linux partition?
It can be both, but
It can be both, but currently we assume the storage is formatted as FAT32.
XIM key
FWIW, us newbies won't know that the "XIM key" is the funny looking symbol above the >> key.
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Hope you don't mind me adding spacing
I hope you don't mind that I edited your entry to add some spacing. Didn't touch the text, just the spacing.<br/>
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