Hi B.!
I empathsize with you in regards to the patience required with potty training. I have a 3 yr old daughter who has not been interested in it. My husband and I have utiltized a potty training game that we hung up on our bathroom door (use a magnet to move 1 space for sitting, 2 for peeing, 3 for pooping; after so many spaces she can land on a reward space; and when she finally has a dry day, she gets to go on the bridge, after 3 dry days she gets to enter the castle and gets her crown).
At first she would just ask about it but didn't want to try it. Then at Christmastime when she turned 3, there was an insert advertising Land Before Time action figure characters which she loves. I placed that at the top of her potty game board with a magnet and told her she could choose one of those characters once she gets to her reward space. That motivated her! At first all she did was sit on the potty, but for us that was a big step. And like you, we had to do better about reminding her about consistency, since she doesn't have the habit and know when to go yet. By the time she received the 4th character, she actually has started peeing on the toilet (which she prefers to the potty). We are now going to make a reward box with a lot of non-monetary (like 30 min or 1 hr of one on one time with mommy or daddy) or inexpensive rewards (like a special type of candy that used only for this or stickers) that she can draw for her reward.
Anyway, so for us, it's patience, motivation and consistency that we're seeing progress. Our pediatrician said that some children are not ready until 3 or 3 1/2 yrs old. And I've heard some boys are not ready until 4 yrs old. Don't make a battle out of it because you don't want to make it about a power struggle and maybe he's not physically ready. Does he go for longer periods of time of dryness, showing he is getting control of those muscles? Also, kids of this age, can get easily distracted or so absorbed in what they are having at the moment, that they don't realize when they have to go, and it's too late. So, that's why it's important for us to keep checking them and reminding them when to go.
Good luck!
K.
(and if you want to check out the potty game that we are using, you can see it at www.iambabycrazy.com/kathompson or if you are crafty, you can make one up yourself. :)