We had been using CoronaSDK as a development tool for quite some time when we realized that it didn't fit all our needs, so the search for a new cross-platform development tool began. The search ended with Unity! Unity provides deployment to multiple platforms and had a much bigger community around it for support, plugins and general problem solving.
For indie developer as us it meant a big step switching from a small scripting language in LUA to a bigger and more complex language in C#.
In the long run we are hoping for faster development times and overall better games!