I wish that when Prokul, Calc Site, Cirrus and Nexus merged with UTI in May 2003 that they kept everything from those sites on UTI. Sadly, they didn't so such tools and some other useful info got lost in the void. I suggested the idea of such tool again last year and Galandros did it. Not a lot of people use it, though, according to the page views, but it can be handy, I guess. In Omnimaga navigation bar at the top, if you click MISC, you can find it as well as other cool stuff. SourceCoder from Cemetech is another great tool for TI-BASIC and Axe Parser programmers.
Anyway on the topic of applications, Wappsign can sign apps too, but I heard that it sometimes produced bad signatures. Is it true? Is it reliable at all? I also heard that it only sign HEX files, not 8xk ones.