I'm using still the Mac OS X Tiger. Upgrading the operating system is difficult because some application may not work for compatibility problem.
For example, I'm using a video capture unit I-O DATA GV-1394TV/M for timer programmed recording. This video capture unit works with a special software which provide programed recording function. This special software wakes up the iMac from sleep mode automatically on programed time, then capture unit will be recording programed TV show. Afterwards, this software does the iMac in the sleep mode. It's working very fine on the Tiger. I feel it's very useful video recording system.
So I was afraid it would not be worked on the Leopard because it seems that it's using critical API (depends on the version of the operation system) for the processing that wakes up from sleep mode.
Also I'm managing 3 web site by the RapidWeaver ( I'm using still RapidWeaver v.3.5.1 ). If I would upgrade the Mac OS X Leopard, I have to upgrade RapidWeaver too. In this case, I'm afraid about compatibility of the RapidWeaver because each web site is not so easy.
But I received decisive comment in the other day from Mr. Lieven as shown in follows.

Mr. Lieven wrote :
the postcard viewer plugin for rapidweaver doesn't work any more on the latest rapidweaver 3.6.5. when you touch a setting in postcardviewer, the thumbs get oversized and there is no way to fix it. people on leopard have to upgrade to RW3.6.5, they cannot use the current postcard viewer plugin any more.

I will go out to Apple Store in Ginza to buy the Leopard and iLife '08 at the end of this week.
Please advise to me for information about compatibility information of RapidWeaver from guru of the Leopard !!

tag : leopard