your silver, gold coins is a good idea have you given any thought how you will ship these coins, postage costs, import tax rules, significant production costs, ppl not receiving coins ?
nothing set in stone why 4b coins said who? nem has changed from clone and moved forward, why do you stick to 4b coins? The essence of 1m coins per investor was to make them feel rich was it not?
Crowd funding simple make extra 1b coins put on ipo poly or bter exchange job done. investors will understand dilution if not tuff shit. plus side you have instant funds to dev nem at a faster rate.
is there not funds left from UP BTC for phone app?