[jupiter]

i have the program, um its freeware, and with the touch pro it makes it built in,but will work with any windows mobile pocket pc phone
Just hit new message, then 'add group',which u simply hit the checkbox from the list of all categories on your phone, and gwah lah it'll send to all those people. I dont know of a max, but i was able to send to 44 people at once. I dont remember where i got it from or I would post the site, so um, PM me i can email it to you