

I haven’t seen that much Gundam, but I think most/all Gundam have wheels in addition to legs. I guess it’s the best of both worlds. Wheels are best for even terrain, and legs enable traversal of uneven terrain and jumping. In fiction of course. In real life, we can’t build anything that complicated.
Storyteller
I just learned about it recently, and it looks really awesome. It does ebooks, audio, and both. It’s main feature is that you can read along with the audio, and it will highlight sentences as the audio goes.