Hello Ben, I've been a fan since long before your XBOX360 laptops were created, and I'm glad to see you have your own show.
Here's my project idea: a small amp using either a digital circut or possibly an analog tube. Ideally it would be Altoids-can sized (maybe not with the tube, but a switch mode power supply would help keep it small) yet still pack enough punch to drive high resistance headphones or give a boost to small, weak speakers. This would be useful not only for audio on the go, but also for DIY audio players or a healthy sound boost to your future portable console projects.
Thanks for reading,
-Mark