You are producing many hashes for the difficulty 1 which could lead to a high load on the server side

So you can increase the difficulty and for example only have to contact the server once instead of four times, but you also get 4 times the reward!

I would say that's the one he's referring to:

http://codinginmysleep.com/bfl-jalapeno-unboxing-and-demo/

Based on all the infos it seems that those new 50 / 60 Ghash will behave like 2 ghash right now, so if the price keeps rising it's a good investment even if you receive it in 2 or 3 months

But keep in mind that they will certainly reduce the size (µm -> nm) of their chips which should bring massive plus on the speed and power consumption.

Yep the 5850s seem to have the best hash/$ - had 8 of them from 2011 and they all still work, for just 100$ new

but still only way to go forward are asics

Have you already checked out the ripple-video on youtube where they explain everything?

And I'd also like some free XRP's

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