Hello, Lubo.
I've been working with Notation SLE and the Demo of Notation3 for a few days now. This is how I've wished the other notation programs (Finale and Sibelius) would have worked for years...no, DECADES! But, they have never seen fit to really get things integrated so that I could easily make VSTi's work. Now, Notion3 is getting me working with notation again!
There are, as you know, still some issues with Snow Leopard, but I have been able to work around them effectively so far. I feel confident that your company will bring Notation up to date with SL soon.
I have purchase the upgrade to Notation 3, and it will arrive on the 19th. That's about right for the Demo to run out, so I should be ok.
Have you thought about integrating the Euphonix Eucon into Notation? I'm using their MC Transport now, and would like to see this and the MC Mix work with Notion.
Nevertheless, I'm pretty excited about Notion now, and will continue learning and working with this program and Vienna Instruments!
BTW, it's been many years now, but I met and visited with the creator of Music Printer Plus, and Notion, Jack Jarret when he was on a sabatical from teaching, in Bellevue, WA. He was developing his software for a company there, and I was interested in what he was up to with his programming ventures. I always will remember him having a some PCs open, and unplugging and plugging in Hard Drives while the computer was running...a healthy disrespect! Something I won't try, but it worked for him.
Best,