You observe that phones have non-standard connectors and therefore require special cables to be connected to computers. A standardised charger requires a standard plug. I expect that this standard plug would not just be used for charging, but also for connecting to computers. The issue will therefore be addressed in parallel.
So it seems they are aware of the issue and 'addressing' it. I'm interpreting 'expect' in the sense of 'England expects every man to do his duty' rather than 'I expect it'll be alright'.
Have some sort of simple one-way streaming multi-cast protocol. (You'd only need to do multi-cast on the LAN, and depend on distributing lots of units to get wide area coverage.) You'd have to distribute a new piece of software so that RSS readers and web browsers could view the content. Opera Unite might be able to do this. Any kind of locally installable web browser would do.
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You'd think they'd at least buy their own keywords.
Be aware that if by "algebra" you mean elementary algebra (what you learn in middle/high school), algebra means something different to mathematicians, so a textbook on algebra may not be what you want.
Would you mind explaining the distinction?