There is wxFlatNotebook (an alternative wxNotebook with more features and nice looking tabs with gradients...
For a demonstration look at: http://www.ttanalytics.nm.ru/wxToolBoxSampleIDE_bin.rar .
for wxflatnotebook look at: http://sourceforge.net/project/showfile ... _id=156698 or http://wxforum.shadonet.com/viewtopic.p ... sc&start=0
it's just basic support but it's useable.