It depends on how complex the editor application you have in mind.
I think that any heavy-weight applications are intended only for desktop computers, not for the metro. For example, the Office suite will be launched in “Desktop” mode even on a mobile device according to Stephen Sinofsky : “Inside the Windows desktop, WOA includes desktop versions of the new Microsoft Word, Excel, PowerPoint and OneNote, code-named“ Office 15. ”Here WOA refers to Windows On ARM; Windows 8 will be configured on mobile touch devices based on the ARM architecture.
In addition, according to this article , you can only use Metro mode applications for ARM; only MS can distribute desktop applications.
However, you can still write simple and lightweight applications, such as a simple photo editor or notepad, I think. In fact, Google’s search turned the commercial imaging library into Metro mode.
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