It'd be nice if you could use the games to set up little arcades. I remember some of those games (of what I played) being fun, but just a pain in the ass to swipe all those cards.
They might have to rebrand the games though or just swap out the Pokemon for other (generic) characters.
'meh, leave the Pokemon in - it'll help them sell.
I can't imagine that this isn't a better idea than just porting iOS/Android games over. I mean, sure, do both - but these old e-Reader games are about on the scale of Smartphone games *and* feature Pokemon. Something new, different and exciting (for most people).
Of course, there could be issues regarding who actually owns the rights to the games. I'd like to say Nintendo (or, at least, The Pokemon Company) owns them - but, I wonder if the fact they were published on Hasbro trading cards has any bearing on who owns them or how Nintendo can distribute them.