Another reason I'm asking is just to clear up a few things, I searched about dun.apk, and I read on another site that this is for Bluetooth stuff, and without it, it could cause problems, and also when I reinstalled Maps.apk I think it installed a bunch of other stuff I was not expecting. Things like that, details. I want to know about each one and what exactly they do etc.
Android_Boost-Hookt.apk =
Hookt
BooksPhone.apk =
Books
Camera.apk = stock Camera
Dun.apk = for Dial-Up Networking over Bluetooth
Email.apk = stock Email
FactoryTest.apk = Sprint Factory Test or some shit
Gallery3D.apk = stock Gallery
GenieWidget.apk = News widget
Gmail.apk =
Gmail
GoogleQuickSearchBox.apk = Google search widget and for search button
InputEventApp.apk = don't know
JobManager.apk = Task manager
KeyBoardSlideUpCounter.apk = Counts the number of times the Keyboard is opened
Keytracer.apk = don't know
Launcher2.apk = stock Launcher
Layar.apk =
Layar
lcdtest.apk = don't know
LiveWallpapers.apk = Live wallpapers
LiveWallpapersPicker.apk = Live wallpaper picker
MagicSmokeWallpapers.apk = stock Wallpapers
Maps.apk =
Google maps
Music.apk =
Music
Poynt.apk =
Poynt
Protips.apk = Widget that tells you how to use android
scvngr.apk =
Scavenger Hunt
SlateTest.apk = don't know
SoundRecorder.apk = for Recording sounds
Street.apk =
Street View
Swype.apk =
Swype
Talk.apk =
Google talk
talkback_2.6.0.apk = don't know
TeleNav.apk =
Telenav
ThinkFree.apk =
Thinkfree office
VisualizationWallpapers.apk = stock Wallpapers
VoiceDialer.apk = Voice dialer
VoiceSearch.apk =
Voice search
VpnServices.apk = for Virtual private network
WlanTest.apk = for Wireless local area network
YouTube.apk =
Youtube