Timing
I measure both cycle times and shutter delay times, using a test system I designed and built for the purpose. (Crystal-controlled, with a resolution of 0.001 second.) Here are the numbers I collected for the Konica Digital Revio KD-400Z:

NOTE: My qualitative characterizations of camera performance below (that is, "reasonably fast," "about average," etc.) are meant to be relative to other cameras of similar price and general capabilities. Thus, the same shutter lag that's "very fast" for a low-end consumer camera might be characterized as "quite slow" if I encountered it on a professional model. The comments are also intended as only a quick reference: If performance specs are critical for you, rely on the absolute numbers to compare cameras, rather than my purely qualitative comments.

Power
The KD-400Z uses one Li-Ion rechargeable battery for power. Unfortunately, the KD-400Z doesn't have the usual external power jack, and Konica didn't include a power adapter with it, so I couldn't conduct my normal power drain measurements. I did time the camera, operating from a freshly-charged battery, and found that it ran 60 minutes in capture mode with the LCD turned on. You should definitely consider purchasing a second battery to pack along in your pocket for longer shooting excursions.

Storage Capacity
The KD-400Z stores its photos on either Sony Memory Sticks or Secure Digital memory cards, and a 16MB SD card is included with the camera. (I strongly recommend buying at least a 64MB card, preferably a 128MB one, to give yourself extra space for extended outings.) The chart below shows how many images can be stored on the included 16MB card at each size/quality setting.