Looks like SolusVM will finally have a live migration script included in the next release..
http://blog.soluslabs.com/2013/02/22/solusvm-v1-14-virtual-server-migrations-preview/
They're also changing to a 'live' search model too, like WHMCS:
http://blog.soluslabs.com/2013/02/22/solusvm-v1-14-live-search-preview/