I don't think it is the same to test something on a platform as developing it on that platform. Developers will instinctively look to take advantage of the stre

I don't think it is the same to test something on a platform as developing it on that platform. Developers will instinctively look to take advantage of the strengths of their main platform and work around the weaknesses. With nobody in an entire team using a platform it will probably become an afterthought, left to a separate quality assurance team who are only in a position to correct obvious errors rather than produce excellence.