It's a real shame its raster functionality wasn't integrated into Illustrator. Adobe really butchered the whole Macromedia portfolio, didn't they?
(For those unfamiliar, Illustrator is a pure vector graphics editor; once you rasterize its shapes, they become uneditable fixed bitmaps. Fireworks was a vector graphics editor that rendered at a constant DPI, so it basically let you edit raster bitmaps like they were vectors. It was invaluable for pixel-perfect graphic design. Nothing since lets you do that, though with high-DPI screens and resolution-independent UIs being the norm these days, this functionality is less relevant than it used to be.)