I'm glad that you like the design of the application. The community and the standard/trial version use the same database. You can uninstall the community and install the trial version. On uninstall we keep the database so when you install again all data will be there.
We limit community version to one project but you can use iterations tree to group your stories. And you can always install community version of TeamPulse on multiple machines.
We released only a SP that should fix some bugs not introducing new one :-). Our beta is only online and we don't provide installer for it.
We constantly try to improve the performance and memory consumption. We also add a lot of new features that can cause some inconsistency in the UI that we are going to address in the next release.
About the links that doesn't work. It is because that we open them in a new window but most of the browsers have the popup blocker that stops them. We are looking at it. For now you can create an exception in the popup blocker for teampulse.
All the best,
the Telerik team