I don't think we have pre built technet labs for R2 yet, but OCS R1 labs are available to play around
http://technet.microsoft.com/hi-in/bb512928(en-us).aspxInstalling and testing OCS R2 on Hyper-v or VMware should not cause you troubles, but please remember Virtualization is NOT supported in OCS and OCS R2 since there are lot of issues with real time roles.
I am running R2 on Hyper-v and it works like a charm, until I see myself in the mirror someday and something go worng due to virtualization.
Anuj,
CN=anuj,CN=airan,OU=UC,DC=[msft],DC=com
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