Microsoft Gives Prospective WP8 Devs A Free, Web-Based Creation Tool
Users need only create a Microsoft account, choose your template, and begin adding content. When you’re app is ready to go, you can download the app to your own phone, or share it with others by publishing it to the Windows Phone Store. Of course, Microsoft has historically given devs access to pretty stellar tools. In other words, there's no telling if this will actually help solve the ecosystem gap.
Beyond all of this, Microsoft is also enabling any developer can unlock and register 1 phone to load up to 2 apps, and it's offering a $19 “Summer Break” limited-time Dev Center registration offer (through August 26, 2013). Obviously, we're rooting for Microsoft here. Nokia's hardware is really fantastic, and iOS / Android could definitely use the competition.