The 1.0.1 did nothing to resolve the issue of not conneting my MacBook to the iBooks folder - thought everything works on my iPad / iPhone.
I got the same message by the Apple iWorks team but I resolved the issue for me temporarily by doing a "clean install" of Mavericks on a seperate HD.
After that the Mavericks system works somehow ad advertised. Somehow.
Thought pictures and docs had to be saved on a seperate medium and uploaded individually - same with pdf and off-Apple installed books - by dragging in iTunes ⚠ from any iOs gear to the iBooks folder.
Some glitches remain e.g. iMessage forgets all previously entered data.
Actually I do not see a lot of argument to go throgh the hassle fearing I may have forgotton something through moving up to Mavericks.
So I finally went back to SnowLeopard and dont look back on Mavericks since - until Apple manages seamlessly to move me over - as they have done in the years when Steve was at the helm of Apple...