If you have a Nokia Lumia smartphone, your chances of running the Windows 10 Preview are looking up: According to Microsoft's Gabe Aul, the company is set to open up Windows 10 Preview builds to a broader range of phones.
The Windows 10 Preview program opened up to smartphones back in February, but the initial preview builds worked only on a small number of Lumia devices. The reasons for this limited rollout were technical--Microsoft had to select phones with an OS partition large enough to handle Windows 10 until it had finished a partition-resizing feature known as Partition Stitching.
Partition Stitching is now ready to rock, according to Microsoft, so the Windows development team was able to expand the preview to include support for additional Lumia devices.
The expanded compatibility list includes 36 Lumia models, including the Lumia 1020 and Lumia 1520. You can see the full list on the Blogging Windows blog. Microsoft stresses that this is a "preliminary" list and is subject to change: The company may add or remove models from the compatibility list as it fixes bugs--or finds new ones.
Microsoft hasn't said when it plans to release the next build of Windows 10, but when it does, check back with Microsoft to see if it's added support for your device.