Target for vMTK is to be the "catch-all" toolkit for our programming languages. These are the points we have in mind:

It defines a cross-platform standard for widgets and core functionality which utilizes native implementations for each platform.

It allows similar widgets to spawn among platforms with matching capabilities, with no extra effort.

When targeting a single platform, vMTK allows full use of that platform's capacities, keeping track of available features and advising about limitations when a port is attempted to a new platform.

Languages using vMTK for graphical user interface are future-proof. While the underlying native implementation changes, vMTK aims to be as backwards-compatible as possible. i.e. A button is a button in windows 3.11 and windows 9. While the native implementation changes in the target platform, the matching vMTK standard for a button remains the same, which means there is stability across years for the programmer using vMTK.