Yes, the qlocktwo is the only other high end word clock I've found on the market. But they were not the first with the concept either. There are TONS of DIY projects and kits available on the net. Personally, I didn't want to make a DIY "project". I wanted a finished product with different styling than the qlocktwo.
Lots of people that have seen my work have said "you should patent that!"
I don't see anything that is obviously patentable to my wordclock design or others that I've seen. IANAL but I do hold 4 patents (and other pending) in other domains so I have a little bit of experience.