[jahewson]

"More efficient" how? At saving developer time? At producing shippable end products? At debugging? Will using GTK result in a better product that increases the end-user's "efficiency" more? Or will it really result in the developer shipping a product with 1/10th the features, or nothing at all?

[drenvuk]

Funny how you mentioned nothing of the computing resources required to run any of these. Sometimes it's alright to spend more time creating a product when the end result uses less CPU and less memory. It's not all or nothing.

[tomtimtall]

If it makes no notisable difference to the user and cost you more time, you are just wasting time that could have been spend better on improving the users experiance.