Outside of Logitech, there's many Linux users that have come up with several different open-source utilities for supporting Logitech under Linux. For most of these apps the hardware support is limited to the few keyboards/mice that the developer owns, but it isn't too hard reverse-engineering a USB keyboard for others to help out and contribute.

First off, Canonical emphasized to Ars multiple times that it is not getting into the hardware business. If you really want to buy one of these things, you can have Tranquil PC build one for you (for £7,575, or about $12,700), but Canonical won’t sell you an Orange Box for your lab—there are too many partner relationships it could jeopardize by wading into the hardware game. But what Canonical does want to do is let you fiddle with an Orange Box. It makes for an amazing demo platform—a cloud-in-a-box that Canonical can use to show off the fancy services and tools it offers.
Inside the custom orange chassis are ten stripped Intel Ivy Bridge D53427RKE NUCs. Each comes with 16GB of RAM and a 120GB SSD, and they’re all connected to a gigabit Ethernet switch. One of the NUCs is the control node; its USB and HDMI ports are wired to the Orange Box’s rear panel, and that particular node also runs Canonical’s MAAS software. Its single unified internal 320W power supply runs on a single 110v outlet—even when all ten nodes are going flat-out, it doesn't require a second power plug.

Right now Linux gamers only have OpenGL renderers to exploit and recently OpenGL has come under a lot of scrutiny with one of the complaints being that it's too high-level compared to Mantle, DirectX 12, or even Apple's Metal. In terms of Mantle support on Linux, AMD has said in the past that it could come and they would like to see it come, but there are no active plans with no engineering resources being devoted to the process of actually porting it over to their Catalyst Linux driver but its feasibility is still being determined. This latest AMD Gaming blog post gives a bit more of a renewed hope that we could see Mantle on Linux given the reference and AMD's continued investment into this proprietary graphics API.

AMD announced six new Embedded G-Series SoCs, featuring improved performance-per-Watt, on-chip security processors, and Mentor Embedded Linux support.

Following up on last month’s announcement of a new “Bald Eagle” generation of R-Series processors for high-end, multimedia-focused embedded processors, AMD unveiled new Embedded G-Series SoCs including what AMD classifies as “CPU solutions,” which are SoCs that include CPUs and I/O controllers, but without the GPUs of AMD’s earlier SoCs. The new parts are labeled with codenames “Steppe Eagle” and “Crowned Eagle,” respectively, for the SoCs with and without integrated GPUs. These new, more power-efficient embedded processors are pin-compatible with earlier models, which are still available.