Well, why don't you give it a go? It should work. In fact, anything over USB should work as long as drivers (and firmware) works on ARM (armel (little endian)).

In this case the firmware is platform agnostic (because the kernel modules are open source), so if you can get driver to work on your USB stick with the Linux kernel in Diablo (or you compile your own one) you should be set.

If you load the driver then you also get your firmware loaded. It works for me using ExpressCard on Linux/AMD64. But in my case I had to extract firmware from Windows driver. Still, putting it in /lib/firmware solved it, and logs and dmesg are useful and informative.

The firmware is often distributed on /lib/firmware on Linux distributions (in my case 21 in /lib/firmware/dvb-*, 15 of which are /lib/firmware/dvb-usb-*). If they're not available in your Linux distribution you can even download them online or extract them from the Windows drivers. The package name in Ubuntu is linux-firmware.

Here some stations (public TV and public radio) are free to listen on DVB-H and DVB-T. But some (commercial ones) are not free. Then you need decoder. But say I had already DVB-T instead of analog cable (or DVB-C) then I could also use this for DVB-H or DVB-T. Irony is that some of those are free to listen/view on Internet, often on their own website.

Nokia N96 (N95 successor) also supports DVB-H, as does some Samsung phone. The latter was heavily marketed as part of a KPN subscription during WC2008 and OS2008. N96 came too late though; and afaik it has flopped, as it was compared to N95-2 too expensive to justify its costs (and in some ways it was not even as good). The trick with DVB-H is of course that it does not cost the ISP data over 3G.

The German text can be translated with Google or Babelfish or something. If someone has specific questions feel free to ask them and I'll do my best with my (albeit limited) German...