The lack of linux based blindscan software concerns me but I don't see anything else out there that would convince me to buy some other brand. I may have to brush up on my C programming and try to build my own linux based blindscan software - programming is very time consuming so I'm reluctant to do it so I guess I'll just have to live with whatever is provided by the vendor.
I wanted to respond to this separately. I really wish you or someone would create this and make it work on systems that do not have a desktop, such as the server-only editions of Debian or Ubuntu, but make it VERY user friendly. I've heard that there are a limited set of tools out there now, but they either require a the installation of a desktop, which you really don't want if you're just running a server such as TVHeadEnd, or they use arcane options that have to be invoked on the command line and therefore they sort of work, but maybe only ten people in the world have ever figured out how to use them effectively. The big problem with such programs is they need documentation with actual examples showing how to use them, and not just man pages designed for programmers that scare off normal users. In other words, pretend you're writing it for a Windows user, just make it run on Linux.
IDEALLY it should detect your tuners and ask which you want to use, then ask whether it's C or Ku band (maybe with an option to specify a local oscillator frequency if not one of the standard ones), and then ask if there's a DiSEqC switch present and if so, which DiSEqC position to use, and maybe do the same for a 22kHz tone switch. Then it should just blind scan the tuner and show the results, then offer to print them to a text file. Make it simple for the user. Of course if you wanted to get fancy you could have a minimal GUI that runs from the command line (similar to Midnight Commander or some configuration utilities), but that's not really necessary if you don't feel like putting in that much effort.
This would be really great if you could do it and were willing to share the result. Just saying...