I haven't deleted the help app yet, since I'm still fairly new to the device. I've had Unyverse installed for a while, and while it isn't quite finished yet, I find my self using it more than Memo Pad for notes, so Memo Pad may get the axe soon. And I may uninstall Viigo and just use the RSS reader in Unyverse as well. One nice thing about Unyverse is the ease with which you can clear out the cache, which also frees up space.