Windows Phone users are a special bunch. They have chosen to invest in the last-place mobile ecosystem. The reason they chose this route can be many things, such as Microsoft loyalty or having an underdog personality. The most sensible reason for choosing Windows Phone, however, is the potential low cost of ownership coupled with the well-designed user interface. It is a solid experience.

Of course, these users are very anxious to try the next version of the mobile operating system, Windows 10 for phones. When Microsoft released the Technical Preview of the OS last month, the list of compatible devices was so small, that many users of the non-compatible devices felt a bit jilted, and rightfully so. Today, Microsoft releases a list of devices scheduled to get the next version of Windows 10 Technical Preview for phones. To the delight of Windows Phone users, the list is much more extensive, but only includes Lumia devices.

"When we sent out the first build of Windows 10 Technical Preview for phones on February 12th, the list of phones was very limited. As I wrote in the accompanying blog post, the reason for this is that we had to select from the set of phones that had sufficient system partition sizes configured by the manufacturer. This was necessary for us to be able to in-place upgrade the phones. I also talked about a feature we were working on called 'partition stitching' that would allow us to re-size the system partition dynamically, allowing us to do the upgrade on a larger set of phones", says Gabe Aul, Windows Insider Guru, Microsoft.

Aul's tone is a bit apologetic, which is appreciated. In other words, he sounds empathetic to many Windows Phone users, and their pains of being excluded from the first round of testing. He goes on to share the following list of devices scheduled to get the next wave of Windows 10 Technical Preview for phones, with the caveat that the list is subject to change.

Lumia 1020

Lumia 1320

Lumia 1520

Lumia 520

Lumia 525

Lumia 526

Lumia 530

Lumia 530 Dual Sim

Lumia 535

Lumia 620

Lumia 625

Lumia 630

Lumia 630 Dual Sim

Lumia 635

Lumia 636

Lumia 638

Lumia 720

Lumia 730

Lumia 730 Dual SIM

Lumia 735

Lumia 810

Lumia 820

Lumia 822

Lumia 830

Lumia 920

Lumia 925

Lumia 928

Lumia ICON

Microsoft Lumia 430

Microsoft Lumia 435

Microsoft Lumia 435 Dual SIM

Microsoft Lumia 435 Dual SIM DTV

Microsoft Lumia 532

Microsoft Lumia 532 Dual SIM

Microsoft Lumia 640 Dual SIM

Microsoft Lumia 535 Dual SIM

I am particularly surprised, and elated, to see the Verizon-exclusive Lumia ICON on the list, as this device seems to get a bit neglected. I cannot wait to try it on mine!

If your device is missing from the list, that is not necessarily a bad thing. It is explained that some devices may have encountered show-stopping bugs. Do you really want to load a severely bug-riddled OS on your phone? I didn't think so. Microsoft will probably include you in the next run. Unfortunately, we do not know an exact date when the second wave will actually start.

Patience dear Windows Phone owners, patience...