Yes, and while cycling, you can actually do some other things. Reading, watching TV, etc. Although, looking at first world countries, and how society is working, having solutions which force exercise on us would probably be extremely beneficial.
Small electronics draw relatively little power. You can run a small LCD/LED TV (or radio) off solar PV and a small (regulating) battery. Large power (and heat) loads require far more (and more reliable) energy. Tapping into human energy is an option, though net net it's still fairly inefficient.
Although I was kind of thinking that even without the electricity, it's a benefit.
Or alternatively, you could get 20 of these, all facing each other and be sociable. Or if you have some electricity in a town, get all of them in a hall, and play movies. :-)
