Photoshop to iPad color profile woes

Question

This is driving me insane.

I always design in Photoshop with my monitor profile as the active profile. My PSD's are never color managed. This is the way I've designed since I can remember and I have always had great results. Until now.

I'm designing an iPad interface and while my blues are blue in Photoshop and soft blue/greys are soft blue/grey - saving as a PNG (not converting to sRGB), emailing them to my ipad and previewing them in the Photo app makes my blues dull and my soft blue/greys more like a brown grey.

Any help would be appreciated.