I can confirm the demo on
http://vps90685.ovh.net:8080/ works with mycelium wallet, too.
Mycelium warns me about the callback using http instead of https, though

(Also, mycelium will not have bitid for prodnet right away. The prototype implementation is just available in the last regular testnet build, and for HD will be working again in the next alpha release on testnet, allowing you to have multiple bitid identities, one for each HD account (or single address account))