According to 9-1A-01 your cellphone would actually be considered a Video Lottery Terminal by the definition of law if you use it for any gaming.
Video lottery terminal
(dd)(1) “Video lottery terminal” means any machine or other device that, on insertion of a bill, coin, token, voucher, ticket, coupon, or similar item, or on payment of any consideration:
(i) is available to play or simulate the play of any game of chance in which the results, including the options available to the player, are randomly determined by the machine or other device; and
(ii) by the element of chance, may deliver or entitle the player who operates the machine or device to receive cash, premiums, merchandise, tokens, or anything of value, whether the payout is made automatically from the device or in any other manner.
Video lottery terminal
(dd)(1) “Video lottery terminal” means any machine or other device that, on insertion of a bill, coin, token, voucher, ticket, coupon, or similar item, or on payment of any consideration:
(i) is available to play or simulate the play of any game of chance in which the results, including the options available to the player, are randomly determined by the machine or other device; and
(ii) by the element of chance, may deliver or entitle the player who operates the machine or device to receive cash, premiums, merchandise, tokens, or anything of value, whether the payout is made automatically from the device or in any other manner.