KB 908951 has a list of all updates and hotfixes as of 6/30 - the following are some of the interesting ones I found.
KB 912252 – An Error has occurred in the script on this page when deleting a contact
KB 911316 – An error has occurred when trying to reply to an e-mail if the subject line of the email does not contain text
KB 913462 – grids are populated slower with custom entity – this problem occurs because the icons are not cached
KB 911986 – Escaped strings e.g & show up in subject line of e-mail activity if you apply a template.
KB 914160 – Error when you try to merge accounts – User does not have the appropriate security permissions to view these records or perform the specific action
KB 915343 – Buffer overrun detected – hmm…that doesn’t sounds good - glad I haven’t seen that one yet!
KB 918291 – Export selected customizations - some customizations are not saved