I use the browser that does this stuff:
1. Allows you to use flash
2. Saves all cookies, but deletes them as soon as you turn off the game/app.
3. Alerts you when your DS needs charging
4. Allows you to turn on/off Twitter alerts
5. Has a built in trillian client
6. Allows you to open up to 6 tabs
7. Is as fast as firefox is on a new computer without anything else on it.