@lived1005 As of November 18, 2011, number of systems for activation is:
For Game Content - Two (2) PS3 and/or portable systems
Important: Both the PS Vita and the PSP are defined as a "handheld" device. The number of handheld systems that can be activated per account are:
For Game Content - Two handheld systems (For example: 2 PSP, or 1 PSP and 1 PS Vita, or 2 PS Vitas)
特意找了索尼官方的说法,2台没错。