The feature walkthrough team have added SRM 5.8 to the set of applications they have created a feature walkthrough for. This should give you a good idea of what the new SRM 5.8 web client integration looks like:
http://featurewalkthrough.vmware.com/SRM/
SRM 5.8 is available for download now if you want to check it out in practice:
Download VMware vCenter Site Recovery Manager for IT Disaster Recovery and planned migrations
