Looked into this some time back, wondering if there is anything new. We're looking for an on-demand satellite Internet service. We would like to purchase the hardware and have available on-demand service that we only pay for when we actually use it. We may need to use it anywhere with little notice for anywhere from several hours to maybe a week. When needed, it would be continuous access. We don't need super bandwidth, but enough for at least one, preferably two bidirectional streams. We don't want to have to pay a monthly fee as we may go months without using it. Advance notice more than 24 hours may not be possible. The equipment would have to be readily transportable, not a huge trailer or anything.
I know this might be a lot to ask, but I'm sure there are users who need something like this for news remotes, events, sports broadcasts, disaster response, etc. who have extremely limited budgets.