The Lumia 510 will be available in a variety of colors in an aim to appeal to a younger audience while its affordable price tag is geared toward emerging economies. However its biggest downfall is that it runs Windows Phone 7.5 which means it wont be upgraded to Windows Phone 8.
Since Windows Phone 8 is not capable of running on lower end hardware manufacturers like Nokia are forced to release Windows Phones with the less than capable Windows Phone 7.5, which despite its fluidity and use friendliness is far from capable of competing with iOS or Android. However due to the appeal of the Nokia brand we assume the device will find a fan base
We would urge our readers interested in Windows Phones to consider a Windows Phone 8 device. If one isn't within your budget, you would probably be better off with an Android device until Microsoft ports Windows Phone 8 to more affordable hardware. You can read a detailed review of the Nokia Lumia 510 by heading over to PhoneArena.