Ubiquity process root certificate not valid
The certificates are probably self signed certificates that get generated to make each mac unique and avoid sending data in the clear between macs and macs/apple servers performing iCloud services.



As for the processes you mentioned, these belong to iCloud and back to my mac location services and are part of a normal installation of Lion. You'd need to checksum / verify binaries to be sure you are safe, but the presence of them shouldn't be startling as they are normal processes on Macs.