Hi!
We haven't made this game, but we fully endorse it and have provided all assets from HW to Hammarhaja (the developer) so they could develop their own version of HW for mobile (iphone/android), we have been helping out with some additional new assets and provided some input regarding the design. I think the game have great potential, the full release is supposed to be this autumn.
The idea actually came with me having ideas of a smaller HW version for mobile, since I don't think the larger PC game would fit very well (I really hate that laggy touch input, sorry all phone lovers), then I talked to a few people and eventually met with Johan (Hammarhaja), that started doing his (and a few other developers) version of Hammerwatch, using Kings new engine Defold. Crackshell, me and Myran are not a company that develops mobile games and we are also very busy developing Serious Sam's Bogus Detour and our new platform - that will eventually also power a full PC HW2.
I should also say, that HW1 will most likely hit PS4 this year, not 100 about the date, but it's being port by a studio called Blitworks,
http://blitworks.com/hammerwatch/