I do like the idea, however you should make clear if and how much of a cut you take for running the syndicate. Currently you say + 0.01 per order, is that all you take? (Would leave you with the difference of cost of purchasing ticket transaction fees of 0.005 x tickets sold, not a lot of "profit" for you).

In addition for "bigger" lotteries you should consider shares in single tickets. This would enable low rollers to take part in the big jackpots.

Wish you good luck with the syndicate. Actually I might purchase a few tickets trough it soon. Long term you might want to automate the ticket purchasing to reduce effort required by you. Also using a specific wallet / hash to purchase tickets from is a great idea by bitlotto.