Have a simple switching topology setup and it's working so far for basic commands.
L2 port-channels work it appears.
Word is that ISL trunking does not work. A list of what did not work in early versions is here:
http://www.routereflector.com/cisco/cisco-iou-web-interface/features-not-supported/
And here is the how-to in the new GNS3 forums:
https://community.gns3.com/groups/cisco-ccna/blog/2014/11/03/how-to-setup-and-configure-cisco-iou-ios-on-unix-to-gns3-11
And here is the how-to for adding ASA images to QEMU:
https://community.gns3.com/community/support/forum/blog/2014/10/26/how-to-add-cisco-asa-842-to-gns3-11-and-get-it-working
etherchannel debug works: