I thoroughly enjoy launching and watching fireworks on the 4th of July and with the native American reservations close to my house I get the chance to buy some pretty fantastic explosives. If you want to play it a bit safer and save yourself some money you can visit Astraware and load up their free Handmark Fireworks application on your iPhone, BlackBerry, or Windows Mobile device.
The BlackBerry version does not include music while the iPhone and WIndows Mobile versions include the Star Spangled Banner and Stars'n'Stripes Forever. The music can be toggled off and you can have fireworks and cheering (sound effects) enabled. You can also select from Iwo Jima Memorial, Statue of Liberty, Mount Rushmore, and the American flag as backgrounds. Custom backgrounds from your photo album can also be used on the iPhone.