Default [Q] Can Download Booster be ported?

T-Mobile is the only carrier in the US who is including the Download Booster in the S5's Stock Roms. So, here's two questions about the feature:

Assuming it is software specific and that ATT, Verizon, Sprint shut off the feature within the rom (ATT have said they may include it in a later update), then would it be able to be ported to other carriers' S5s?

And would the feature be able to be ported to other T-Mobile Galaxy devices such as the S4 and Note 3, or is limited by hardware?