SR520 and DMVPN

After doing an IOS update on an SR520 to 12.4-24T1, I just noticed that DMVPN is now available. Sweet! It wasn't available in the older 12.4-20 code I was running.
Still no EIGRP support, but at least it's a step in the right direction.
I like using DMVPN for my multi-site VPN deployments, it seems to work very well. Here is the config guide, the setup is pretty simple. Just remember that in a UC520/SR520 network, you have no EIGRP support so you'll have to use static routes to get traffic flowing between sites. And be sure to allow GRE through your access lists.
http://www.cisco.com/en/US/tech/tk583/tk372/technologies_configuration_example09186a008014bcd7.shtml