Days ago there was a technical request about the POS, I did not understand
if the request was sincere or just a provocation, but either way,
since the Dev are busy with persistent connectivity problems of the servers,
and so I guess they can not give them an answer to that request in the short
term, I try to answer as a simple user.
The request was for a chart showing the evolution of Pos Difficulty, in fact,
recently this was not discussed a lot, but in the last period there has been
some increase.
The following chart is the trend of the POSDIF extracted from a block-chain
starting from 2015-04-01 and aggregated at intervals of one hour.
The red trace (left axis) is the average of the POS, the black line is a moving
average of the POS with a window of 24 hours to soften fluctuations on a daily
basis, and the blue trace (right axis) is the average number of seconds between
the blocks.
As you can see there emerges a cyclical swing in the POS, a stronger on the 24 hours,
and one less noticeable over the week.
These changes are better shown on these two other graphs, whose blockchain's data
are aggregated into 15 minute intervals starting from 2015-01-05, and in turn
aggregates again on hourly basis, wrapped over the 24 Hours, or wrapped over
the entire week.
Obviously the data are to be considered as preliminary and indicative only,
I may have committed errors of form or method (although I do not think).
This answer I do not think that fully meets the initial request, but I hope
that satisfies this technical curiosity.
Considering that a picture is worth a thousand words... this time I tried
to be more concise.
Bye Bye
and yes i saw also that it's not on rich list yet,the coins are there 
well bye bye 8btc 
