Quote: "Have they assisted anybody before ? "
I remember they were helping anyone out there with DBPro / DGDK games when the Intel AppUp store opened. Many members decided to publish their software under the TGC brand, and TGC took care of integrating the Intel AppUp SDK into the software.
Each store has different requirements and many need a subscription, that's why TGC wants to ease the path, and endorse community software.
As for DGDK / DBPro, you can ony opt to the Intel AppUp and, I guess, Amazon App Store, because it is PC software and there is no point with mobile software stores.
I published on my own with Intel, but TGC gave me support with promotion (articles in the newsletter) and others.
1st thing you need is a good piece of software. TGC will help you if it stands out