Please , Add Iran to your supported countries list in Developer Account Registration.
We'll develop great apps for Windows Store.

When I create a paid app with a trial option, many users blow right by it because it doesn't show up in the "free" category even though a light version of the app is free (via the trial).

Some people are resorting to the super-inefficient Apple app store method of releasing 2 versions of the app... one that shows up in the "free" category and another that runs as a paid app. The "trial" is a fantastic concept, but it is hobbled by this oversight

Some people have had other developers submit apps to the marketplace on their behalf for many reason. They may have been in a country that is not supported for example. More then one developer may have worked on the app and are now splitting. Some people may sell their apps to others.

In all these cases it breaks the update cycle for existing users because the new owner would have to create a new app instead of updating the existing one.

Windows Phone Silvelight XAPs were signed, so anyone donwloading them through the Store (manual download) could not have easy access to the sources of the app.

Now with Universal apps / WinRT (.appx), our binaries are not longer signed as a whole, any script kiddie can unzip and decompile any app.

That's a huge problem regarding developer investing on the platform.

I started as a sole developer, and now there's a group of us, and we are registered as a business with IRS. I would like to be able to convert my individual account in the Marketplace into a company one without losing my publisher name, my brand, my app portfolio and my user base. It is a common scenario in the "real" world, so why should it be impossible in the Marketplace?

It's great that the Dev Center now allows multiple users to access the same account, and I can submit app packages as a user with the developer role: https://msdn.microsoft.com/library/windows/apps/mt489008.aspx.

However, it would be even better if it allowed users with the developer role to create app packages in Visual Studio. At the moment, it is impractical for me as a developer to keep asking my boss for his Microsoft account just to create app packages.

It would be good to know not only the number of downloads but also how many are active still.
If you have seen the google store they show active installations more prominently than total download count - and that actually makes sense considering the amount of trash apps going around in all the phone o/s .

Allow changing the country and name after registration on Windows Phone Store, PubCenter and Windows Store.

It would be really good to see numbers on how many people go to an app's page in the store so we can compare it to download numbers.

This would help us to gauge if the screenshots, description and tile are being effective in driving downloads. This is information that we have no way to ascertain and would help us to greatly determine our ‘curb appeal’.

Tools like this could help Windows developers to be much more successful and in turn attract more skilled developers to the platform.

Add Payoneer as a payment method for Windows Phone Store / Windows Store / PubCenter earnings.

Platform should support new applications that are not big companies'. In these days all new applications don't appear in New+Rising category, and some new applications are dying. We have communicate with Microsoft Support about this situation and they said "We don't promise "New applications always enter New+Rising category" to developers. It is so embarrassing for small companies or freelance developers. You should support new applications, you should support us.

Allow filtering of marketplace results within categories beyond pay/free/top/new by adding filter by rating (ex: 4+), by price (ex: <$1.99), by number of downloads (ex: 10000+), or allow blacklisting of developers (or developer rankings) so spam apps and spam devs could be avoided.

Now with Win10 Dashboard the stack trace only provide a snippet of the error which is included in the error lines. However with the new dashboard this is the only information that is provided on the dashboard. It's not enough for devs :(

Today only Windows Phone Store allows creation of beta and hidden apps. The Windows Dev Center does not allow that. It is very important that we support beta for both Windows Phone and Windows.

As app developers we are currently stuck with 2 methods of generating revenues 1) one time app payment 2) Ads.

I would like to see a monthly/yearly subscription model introduced that let me charge users $5 a year for my app for example.

This would mean we could make ad free apps that developers are motivated to keep adding features to over time since they are generating ongoing revenues.