Verizon Apps--Verizon's app store, which is useless, because you can find the same stuff on Google Play. In addition, Verizon Apps has always been slow as mud.
Home screen tips--A widget you can add on the homescreen that cycles through 9 or 10 tips on how to set up home screens. Once you've learned them, there's absolutely no reason to keep it active.
MOG Music--Subscription streaming music, check Google Play for description
MOTOACTV--intended for use with Motorola's MOTOACTV fitness watch. Clearly not needed if you don't have it.
Music Store--The music store that shows up under Motorola's stock My Music screen. Useless because all the tracks come from Amazon's MP3 store, so just use the Amazon MP3 app.
Netflix
Slingbox--only useful if you own a Slingbox, which hooks up to your TV and allows you to watch TV on your device anywhere.
Smart Actions
Sync Service--I believe this is the service that syncs with Backup Assistant. Unfortunately, you can't disable Backup Assistant as well.
V CAST Tones--Verizon's useless store to buy ringtones. You can get a lot of free ringtones from Zedge and other sites, and you can also make your own by using apps like Ringdroid.
Verizon Video--Verizon's useless streaming video store.
Video Calling--Verizon's video calling app. Not sure if they charge you to use it, but I never do video calls.
VideoSurf--Mind-bogglingly useless app that will identify a music video if you point the camera at the TV. Like Shazam, only for music videos.
VZ Navigator--Verizon's turn-by-turn nav app. Useless, since you get Google Maps with navigation free.