If Oracle made toasters, it would claim its toaster was compatible with
all breads and styles of bread, but when you got it home you'd discover the
Bagel Engine was still in development, the Croissant Extension was three
years away and the whole appliance was just blowing smoke.

If Microsoft made toasters, every time you bought a loaf of bread, you
would have to buy a toaster. Toaster 5 would weigh 15,000 lbs, draw enough
electricity to power a small city, take up 95% of the space in your
kitchen, would claim to be the first toaster to let you control how light or 
dark you want your toast to be, and would secretly interrogate your other
appliances to find out who made them. Everyone would hate Microsoft
toasters, but would buy them anyway because most of the good bread would
only toast in its machines.

If Apple made toasters, it would claim its toaster could do everything the
Microsoft toaster does and more, but five years earlier. However, you
could only toast Apple bread with an Apple toaster.

If IBM manufactured toasters, it would want one big toaster where people
would bring bread to be submitted for overnight toasting. IBM would claim
a world-wide market for five, maybe six, toasters.

If Xerox produced them, you could toast one-sided or double-sided.
Successive slices would get lighter and lighter. The toaster would jam
your bread for you.

And if Sun Microsystems made toasters, the toast would burn often but you
could get a really good cup of coffee...