I'll share my initial experiences with the latest LX3 firmware upgrade, V2.1. V2.0 was quickly pulled when early adopers experienced problems; 2.1 seems fine. I waited awhile on this one, just in case :-)
FWIW Panasonic's process involves downloading a compressed file, extracting the update file, loading the update onto an SD card then uploading to the camera from that card. It takes perhaps ten seconds, once the camera is switched on.
Many will be interested in the new high dynamic mode, which I've not yet tested. It's a jpg emulator of an HDR frameset, with three submodes. If and when I play with it, I'll report back. For now, the key improvements:
* 1:1 aspect ratio. This is a fun addition to the LX3's three preexisting ratios–a feature I was dubious about but am now a huge fan of. For anybody who knows they're shooting for square output (CD cover, perhaps?) it will ease composition. It also ekes out a lot more frames, since the file sizes are much smaller. Selecting it is buried in the menu but it is cancelled by simply moving the aspect ratio switch.
* +/- three stops. Auto exposure bracketing and exposure compensation are now up to a whopping six-stop range. HDR fans take note! Why don't more dlsrs offer this?
* Zoom memory. At last, at the shooter's option the camera can remember its zoom setting, either after being shut down or going into sleep mode. This has the obvious benefit of adapting to your preference and perhaps more importantly, dramatically cuts the on-to-first-shot time, if it's shut down at the maximum tele state. The old default was to open to full wide, which is nice for landscapers but is also maximum lens extension and thus, takes the longest possible time.
* Adjustable guide lines. You can now position the display grid to where you'd like.
* Expanded white balance bracketing. More user control here now.
* Expanded blown highlight flagging on playback. Better ability to review and reshoot over exposed frames. No equivalent blacks display, maybe on the LX4?
You can read the gory details on all the changes here.
http://panasonic.jp/support/global/cs/dsc/download/LX3/ftp/DMC-LX3_eng.pdf
I confess to being blown away at Panasonic's lingering support for this camera. They've not only corrected shortcomings, they've added tremendous utility to the camera over the course of something like five firmware updates, some specifically addressing user suggestions and requests. Too bad they were caught flatfooted on production capacity–they clearly didn't expect it to be a best-seller at the pricepoint.
Cheers,
Rick