Vita owners with a 3G connection will have a 20mb limit on downloads, an SCEJ spokesperson has said.
In an interview with Ascii, (translated by Andriasang), the rep said that despite the initial 3G limitations, this might change in the future.
The spokesman added that it is providing support to developers in regards to online technical limitations such as its 64kbps upload and 128kbps download speeds.
Both the Wi-Fi and 3G versions will be able to purchase items from the PS Store.
The PS Vita is due early next year in Europe and the US with 26 games planned for launch.