SunOL is an "Offline List" for your DS,  wherein you can view all the official releases for the Nintendo handheld. This homebrew app is in its final version at 0.3, and is created by SunDEV.

Basically, it provides basic information for the games on the list, as well as the logo, boxart and a screenshot.  All of the informatin are stored on the memcard and can be updated through wifi.

Here's the changelog:

New :

• Add a theme selector (this version is published with 3 themes by 59HXC)
• Add a bookmark feature
• Add some other features

Modifications :

• moved skin.ini to theme.ini (this file is different)
• Engine fully rebuilt more efficient

Bug fix :

• the rebootlib is downgraded to the older one (SunOL will now work on R4&co)

Download: SunOL v0.3 final