A very good news for Windows Phone users with low-end handsets that Microsoft is working on bringing Windows 10 to low-end Lumia devices. According to a tweet from Joe Belfiore, VP of Microsoft’s Operating Systems Group reveals that the developers are currently working on building Windows 10 update for Lumia handsets with 512 MB of RAM. However, users with devices with 512MB of RAM might not get the entire Windows 10 experience. The concern was particularly for the models with just 512MB of RAM. This of course includes some of the most popular Windows Phones like the Lumia 525, Lumia 520, Lumia 530, Lumia 635 and Lumia 630. This situation is same like the iOS 7 update situation for Apple's iPhone 4. The lack of RAM on some of the Low-end Lumia Phones has already caused Microsoft a lot of problems. Previously, many games including Temple Run did not work on phones with 512 MB of RAM. The app developers had to re-engineer the game for the low-specs of certain Windows Phones. This story could be repeated with Windows 10.