You actually make it sound easy. So that everyone knows, it is not the Federal government that is the problem, it is in fact the states.
For an internet-based MSB that wants to service the entire US, said company must obtain 47 licenses. Taking a look at just one, California, the company needs $100k-$500k in net worth alone; audited financials, owner(s) financials, surety bond and more.
Now do that 46 more times.
This is why only about 10 companies nation-wide have achieved all 47 licenses; such as Amazon, PayPal, and Western Union.
http://www.aarongreenspan.com/writing/essay.html?id=86
If you really want to understand this then watch this in full:
https://www.youtube.com/watch?v=gmiY35brih0
Congress is really needed to resolve this issue.
The petition by FaceCash is here:
http://www.change.org/petitions/the-u-s-senate-reform-money-transmission-laws-to-allow-mobile-payments
PayPal's licenses are listed here:
https://www.paypal-media.com/state_licenses.cfm