SINGAPORE (Reuters) - Nokia Chief Executive Stephen Elop unveiled a new smartphone on Tuesday that uses software the firm plans to ditch, a move analysts said would probably condemn the device to obscurity. Once the undisputed leader in hand phones, Nokia has rapidly lost ground in the smartphone market to Apples iPhone and Googles Android devices, and at the low end of the market to Asian rivals such as Chinas ZTE and Indias Micromax. At a telecoms conference in Singapore, Elop reiterated that Nokia would launch its first smartphone using Microsofts Windows platform later this year, even as he unveiled the new all-screen N9 smartphone, which uses a platform called MeeGo.