Not sure if I will get a reply, but worth I try I guess.
Anyway, on the BlacmMagic Design website the Intensity Shuttle, UltraStudio Pro, and DeckLink HD Extreme 3D all list 480p capture under "SD Format Support" on their tech pages. Although the DeckLink HD Extreme 3D does not list SMPTE 344M under its "SDI Compliance" which is the SDI standard for 480p.
I talked to two different BlackMagic staff members and the first told me that 480p works, but currently has a bug that will be fixed in a future update. The other, however, said that even though 480p support is listed on the website, it is an error, will be removed, and 480p capture is not supported.
Could I get a confirmation if 480p capture is supported or not on these three hardware devices? I am most interested in the DeckLink HD Extreme 3D and knowing for sure that 480p capture is supported over component, hdmi and sdi.