In the ann post it says that: Min stake time is 8 hours. Max stake time is 30 days.
Looks like the expected time to earn reward is just a statistical number, just like solo mining. You are supposed to find a block every eight hours, but you could go 30 days before you find one. Or find 8 in one day. It is probably just variance.
Where is the description of how this works?
Can you give a practical example? I've seen the number 3% thrown around. Is that 3% per year? e.g. 1000 coins gets you 30 more per year. (Broken down per what unit of time?)
Also, if one wanted a machine running constantly for this, could you do it on something very energy efficient? Raspberry Pi or would you need at least a netbook to get that wallet going?
Thanks in advance,
IAS