Within minutes of the download being made available the PlayStation Store was suffering from regular periods of downtime with players receiving a “currently under maintenance” error message. Many users also reported problems with the share codes offered to pre-order customers with a variety of errors
The developers also revealed a Destiny Companion app that will allow players to track several in-game stats and features:
From the creators of Halo and Bungie.net,
the official Destiny Companion App connects to your Destiny adventure
wherever life finds you. Inspect your Guardian, analyze player stats,
and compare your Grimoire score. Keep in touch with your friends in the
Bungie Community via forums, groups, or private messaging and track
them down on the PlayStation Network or Xbox LIVE. And, receive the
latest news and updates about Destiny.
Source: MMORPG