If you prefer the good ol' plugin model then you can buy IntellijIDEA and install all the language/platform specific plugins that you want.
One catch is that IntellijIDEA license costs about 2x the price of specialized IDE for your favourite platform.
The other catch is that JetBrains has individual teams for individual IDEs and thus IndellijIDEA plugins lag a bit behind the specialized solutions.
No need to get all worked up.