Yes, it may be "*extremely* challenging", but someone has
overcome this difficulty. Check this video out  -
http://www.youtube.com/watch?v=zAV4Jbmuhc4. It is on Windows and runs
apps. Looks like it's fast.

On Aug 24, 2:41 pm, Dianne Hackborn <hack...@android.com> wrote:
> On Tue, Aug 24, 2010 at 1:12 PM, Vedran Rodic <vro...@gmail.com> wrote:
> > Both things contribute to iPhone development being significantly faster.
> > I wish google did something like this for Android 3.0.
>
> This requires building the entire platform to run as native code on the host
> machine, as well as compiling a different version of the app if it has
> native code to run on the host.
>
> This is not going to happen any time soon.
>
> In fact you can build a "simulator" version of Android that runs on Linux.
>  Ultimately though this is not very useful for app development because it
> has low fidelity with the real platform -- it can't use separate processes
> for each app, etc.
>
> Also being able to build a simulator that runs on Windows or Mac would be
> *extremely* challenging.  It is not too bad on a Linux desktop, because
> Android is based on Linux.  However making it run on another kernel would
> mean introducing a very significant compatibility layer across some large
> section of user space to allow it to run on these very different kernels.
>
> You'll notice that the iPhone simulator only runs on Mac.
>
> I don't think the significant effort to get a production quality Android
> simulator, that ends up only being able to run on Linux, would be anywhere
> near worth the effort.
>
> Also, as has been pointed out, you should only need to boot the emulator
> once.  After that you keep it running and just reinstall your app on it...
>  just like working with a device.
>
> --
> Dianne Hackborn
> Android framework engineer
> hack...@android.com
>
> Note: please don't send private questions to me, as I don't have time to
> provide private support, and so won't reply to such e-mails.  All such
> questions should be posted on public forums, where I and others can see and
> answer them.

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