Preliminary review indicates the crew was aware of the close proximity of the other aircraft, but possibly not that an incurrsion occurred. Ground provides taxi instruction via Tango to gate H10. Crew reports CACTUS parking very close to taxiway Tango. RAMP 2 notifies Ground that taxiway Tango should have been partially closed for taxi due to aircraft parked. Crew notified of gate change with no indication of incident having occurred.