In response to a question on www.dpreview.com's forum, I made a quick video of the speed of the Panasonic DMC-FX150.

You can download the video here [0].

Sorry about some of the subtitling speeds, this was a rush job to answer the question. You can always pause it to read the words.

Further information:

Initial images [0] from Panasonic DMC FX 150

Images at f/2.8 [0], also from DMC FX-150

edit:
I've also posted a report on what it's been like living with the DMC FX-150 for 4 weeks [0].