Hello,
Thanks for getting in touch it’s great to hear from you. Indeed time really flies; it’s hard to believe it’s been so long but we are still working on Amplify Texture 2, the main reason for the delay being that we are a small indie team with very limited resources. The product has been deployed for a while now and development is ongoing, even though we haven't officially launched.
One of our biggest constraint is the fact that, since our sales are fairly moderate (on the low side), we have to do quite a lot of outsource work to keep development going; other delays have actually been good, so to speak, from all the feedback we gathered thanks to our early adopters we were able to really improve and add to what we initially planned.
Just to clear out any doubts, Amplify Texture 2 is currently being used in commercial projects and has been licensed by a few larger entities, from games to simulations; it may not have been officially released but it’s fully production capable and an official release is not far off.
Regarding Graphite, while they have the right to patent their technology (pending patent), as do we - even though we're pretty much against software patents - we are fairly confident that that their patents have no validity over our product since our first public release dates back to 2011 and our initial technology was based on publicly available descriptions of generalized virtual texturing, such as
Sparse Virtual Textures, that dates back to 2008 and others even earlier. It has, of course, since involved into something more complex, highly customized, flexible and reliable.
I hope this clears out any concerns but let us know if you have any additional questions, we would be happy to elaborate.
Thanks!