Using a non-standard alternative animation instead of the SBBOD is not going to do anything to improve the performance, perceived or real, of the applications. It just looks like a really poor way to try and mask the applications’ responsiveness issues instead of actually dealing with them.
Using the standard Mac OS X indeterminate progress spinner as a cursor is just bizarre.
Update: Jesper’s take.
Update 2: Igot’s follow-up post.
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