Electrum Beta 2.0 binaries out:
https://electrum.org/beta/ for those you want to use the Trezor without compiling software or using mytrezor.com
I downloaded the Windows .exe file. It ran on my Windows 7 system, but when it came across the Trezor wallet file that had been working with a build of an earlier version, it choked. So I removed the Trezor wallet file and restarted the .exe. This time it gave me the "create wallet" dialog, but this dialog did not include a decision box for "hardware wallet" which the earlier build did have. So apparently this beta .exe file does not include Trezor support.
Not sure if that's it, but can you check wether the trezor plugin is enabled in tools / plugins?