Hi,
We are currently in the process of training our son too. He's 2 years, 7 months. Actually, we started really early...I don't think the best decision to introduce him to the potty. So the training has been going on for about a year. Recently, though, he's made a break in the training. Some days, he goes almost all day in either underwear or naked from the waist down. Understand that there will be accidents, but it's worth it to clean up and redirect him to the potty.
A few things that have been helpful to the potty training have been: a rewards system- I chart his potty progress and give him a sticker for each potty. Once he's achieved 10-15 potties, he gets a prize. Lately, his favorite toys have been Thomas the Train. So, we bought him a few trains to store away for 10 successful potties. Another thing that has helped is watching the potty videos together. He loves to watch the Elmo potty video and then wants to immitate Elmo. So, that helps! We also read books together on using the potty. If no one else is in the house, I leave the door open when using the bathroom-that way he can learn by example. He seems to learn better though watching his father pee in the toilet and now stands to pee in front of the potty as well.
The trickiest part is going out for the day. We can bring him to the bathroom and remind him to go, but sometimes he just forgets and uses his pull-ups. They get distracted easily at this age.
I hope some of these tips are helpful. We've had some success, unfortunately not as much as I'd like to have. The inconsistency doesn't really help in our case either...good luck:)