If Nokia want to grow marketshare and remain as a big player in the mobile phone industry: 1) Ensure the previous phone can run the new updated os 2) Keep user and developers happy - user's library of applications will grow and allow user's to take the applications to the new phone too 3) This will attract more developers and more users to Nokia maemo-based devices 4) Third-party app developers may gain the confidence to charge users for apps if they wanted to. Nokia get revenue stream.