I came back th this thread hoping to find a definate answer but that doesn't look like its going to happen. Markn26 - What did you go for in the end. I have sort of registered a name already for my next site with a bit name in the title. I guess I wondered if you felt that using Photoshop would be safe enough? Mine is more on the Adobe route of being a company name rather than product.
That's totally different from creating your own content around a program; you're endorsing the program, not revealing it's secrets.