What are some alternatives?
When comparing NXT and 42coin, you can also consider the following products
Allscripts CareInMotion - Other Health Care
Peercoin - Peercoin is a P2P digital currency and payment system optimized for security and energy-efficiency.
eClinicalWorks - eClinicalWorks - the largest Cloud EHR in the nation. Make the switch to eClinicalWorks
Bitcoin - Bitcoin is an innovative payment network and a new kind of money.
Ripple - Ripple connects banks, payment providers, digital asset exchanges and corporates via RippleNet to provide one frictionless experience to send money globally
NameCoin - Namecoin is a distributed domain name system based on the Bitcoin technology.