In the spirit of the holiday I thought I would highlight some cool BlackBerry apps and themes. The most popular holiday theme is definitely Magmic’s 4th of July theme which is available for $1.99 in the store and in App World. You can find more themes like it in App World or in the store. There are also a few animated fireworks themes in App World.
Also worth checking out is a free Fireworks app by Handmark that Ashley pointed out in the forums. There is also a relatively cheap FireworksHD PlayBook app by Dangazak in App World for $0.99. There is also a free fireworks PlayBook app but it seems to suffer from some serious lag.