some have mentioned a large number of rejected mined blocks
I think system clock synchronization could be an issue
ntp is what I use, but I do not know how to sync system clock in windows
If anybody knows, please post instructions, thanks

is there a thread for nxt odroid owner  , i have a  few question / problems with my odroid ?

Well, I faced a moral dilemma and would like to ask for an advice...

FrictionlessCoin created a thread dedicated to NEX (descendant of NXT). I had a lot of fun reading that thread but I suspect some people took NEX seriously. The problem is that if FC waits till April when Nxt source code becomes completely open, he still won't be able to generate a valid genesis block, coz Nxt uses a crypto algo modified by BCNext (this is why we collected 10 BTC for the audit). I support all cryptocurrencies and would like to help him to create a new genesis block, competition is good for the whole crypto-community. But this could look not very good to guys who own NXTs...

What would u do?

500'000NXT @ 0.000035btc

Rush sale and accepts fractionals => 1 btc

This is what I don't understand and hope you can explain -- what are the benefits (ROI-wise) from running a RasPi?

I'm already running my client on my MBP. What benefit do I gain from running an additional RasPi? Sure, there's some minuscule goodwill going on in helping the network. But it won't help my forging at all.

Why should I drop $100 on a Pi and not just buy another 2000 NXT?

If there's a tangible upside, I'll be adding a Pi every week (actually, probably something beefier like an odroid, but that's for another thread).

A Raspberry Pi only uses 2W at most:  400ma @ 5V.  This has to come from a power supply that has some conversion efficiency of 50-80% or so.  Let's be conservative and say we're using a 50% efficient wall plug transformer.  Then each Raspberry is using 4W of wall power to generate the 2W it actually needs to run.  Say electricity is $0.15 per kWh.  Then in a year of 365*24 = 8760 hours, a single Raspberry Pi is going to use 8760 * 4 = 35,040 watt-hours or 35 kWh per year costing 35 * 0.15 = $5.25 of electricity per year.  

Thus the power to run a Pi is thus real but pretty negligible in the overall cost picture.  You can run 25 Pis nonstop for a solid year for the same amount of juice required to leave a 100W incandescent bulb on day and night for a year.

As a reasonable estimate, a single Pi costs around $120 as capital outlay to set it up for a year of service as an NXT node:  $35 for the Pi itself; $30 more for the memory card, cables, cluster support gear, etc; $ 5 for a year's worth of power; and say $50 per year (around $2 / mo) to park it in a server farm.  A network of 300 Pis thus costs $36,00 to set up and run for a year (of which $15,000 per year or $1250 per month is "office rental" and "human tech support" and "internet bandwidth").  

If there are truly 5000 NXT per day generated in transaction fees as assumed above, that's 365*5000 = 1,825,000 NXT per year.  If you are using 300 Pis at $36,000 per year to capture ALL those transaction fees, you are spending $36,000 / 1,825,000 NXT = $0.02 per NXT or around 2 pennies per NXT to capture the NXT using Raspberry Pis.  At 0.00005 BTC/NXT and $800/BCT, a NXT is currently worth $0.04 cents.  

Rough ballpark estimate: Capturing NXT with Raspberry Pis could double your money in a year at current NXT prices.  The Raspberry cost is fixed; the ROI gets better and better the higher and higher NXT goes.

http://coen.boisestate.edu/ece/files/2013/05/Creating.a.Raspberry.Pi-Based.Beowulf.Cluster_v2.pdf

I seem to recall that people are setting up VPSs for around $20 per month or $240 per year, which is double the cost of setting up a Raspberry Pi for a year as outlined above.  Thus while NXT is at its current $0.04 each, capturing NXT with VPSs is a break-even proposition.

These are actually great numbers.  The return-on-investment or ROI for forging NXT is positive NOW and will be even more profitable when NXT coins become more valuable.  Thus even with NXT as a Proof-of-Stake coin without mining, there is STILL financial motivation for people to run the nodes required to keep the NXT system going.  For a pre-mined coin, that is a remarkable statement.

Oh and the daily cost of the NXT support web running on 300 Raspberry Pi nodes is $36,000 / 365 = $98.63 per day.  Do it on 300 VPSs instead, and the daily NXT support web cost is around $200 per day.

The issues all come down to Dgex, which is the only exchange for Nxt and the only source for coinmarketcap stats.  The site is often unavailable (ddos attacks) and subject to manipulation, furthermore, they've implemented outrageous fees causing many to shy away from trading.

I´m in. anyone want to join? Smaragda?

I just disconnected from Internet, started the client & generated offline cold storage address (wallet).

Reserved..