Personally I think the fairly low amount of memory is good and works well with their motive - to promote computer science education. If it had more, you could easily chuck massive frameworks and whatnot at it, but as there's not as much RAM then hopefully people learning with it will have to work a little closer to the bare metal. I'm sure things to make Raspberry Pi work 'easier' will arrive - and that's not necessarily a bad thing - but at least they'll be more constrained.