Upload & Sell: Off
Really interested to see this play out and hope everyone will chime in on their experience. I was running through checks on my most important apps and ended up deciding, reluctantly, to hold off for now.
Here's my contribution on some of the details, in order of importance in my case.
Note: RoaringApps.com is a great resource for finding solid data about OSX compatibility. Good place to start checking your apps.
Eizo ColorNavigator (version 6.4.4 for me)
Best I can tell, this is not supported. At least not for one person, who is the only info I can find. This is the deal killer for me.
Apple Support post is here
RoaringApps does not have Mavericks compatibility data posted yet.
i1Profiler (current version is 1.5.0)
This is reported on roaringapps.com (great compatibility site) as not compatible. Commenter confirmed the same.
Here's i1Profiler on RoaringApps
The Adobe apps, CC and CS6 versions, seem to be compatible at least mostly. Looks like there are a few issues, but they look minor. On CC/CS6 versions, Adobe has acknowledged some minor issues with Lr 5 appearance, After Effects and Dreamweaver. Also something with Flash Player and Safari (see the link below for more). More people saying versions CS5 and earlier have issues ranging from minor to failure to load entirely. For me, running a mix of CS6 and CC Adobe apps, I'd forge ahead if it weren't for the problems with ColorNavigator. If I were running CS5 and earlier, I would hold off.
Official Adobe page about Mavericks compatibility and FAQs
Adobe Blog post with couple not so encouraging comments
Epson Printer Drivers / Software
I use a Stylus Pro 9900 and a Workforce 645. In my case, it looks like everything would be supported. The current driver for the 9900 (v. 9.04 released in 2012) is stated to be compatible with Mavericks by Epson. For the WF 645, it looks Mavericks would have this driver/software included in the OS, which makes sense. Epson has some good info to look through on compatibility and your printers. The one area that apparently is a real problem are scanners.
Epson page with Mavericks update instructions by model
Epson FAQs page about Mavericks
Hope that helps some people. Dealing with these issues are pretty much the part I hate most about using all these products. Hopefully this thread can save us all some time and frustration.