I have noticed that some apps don't actually freeze when frozen......that is to say that I can see evidence of them still running.
In these cases I have removed them. Once the app actually stops running I can usually see an improvement in benchmark performace.......and I can certainly tell if they are no longer available because the functions they bring cease to operate.
I have not quantified how much individual apps slow the system.......and don't really care.
I simply decide if they are needed....and if they are not I remove them.
I went so far as to remove the GzGear as well. The compass was the only one I would use...and I prefer GPS-Status, available on the Market.
As to Voicemail:
The Voicemail system never allowed me to enter my VM password. I had to type it every time I used voicemail. To make this a one-touch action, I created a contact called "VoiceMail", and entered the "*86PP" and my password as the phone number. Then I created a direct-dial shortcut on the screen. touch it once and it calls my voicemail the way the stock app "should" but doesnt. (callmecolt pointd out my mistake in using commas instead of P's for pauses).
The voicemail notification shows on the notification bar when unread messages are present in your voicemail and tells you how many, and disappears when they have been read.....it just won't work as a way of launching voicemail. This is not a problem for me. I think it works fine this way.
As to the camera:
I don't have a problem with the camera. Not sure what you are talking about there.
Browser is called "[Bookmarks] Browser 2.2.1".
I like the existing browser....with the exception that the "VZW Home" and "My Verizon" bookmarks cannot be deleted. I have no use for the Verizon crap....other than the basic service, and wish I could find the standard browser app without these two bookmarks. I wonder if I can just take the standard browser package from another phone?