It wasn't removable on the G2 so I would expect that it would be the same for the G3. As for those that are telling people to stop whining about the logos, some (including myself) can be very particular about the aesthetics of their phone. My main issue is that the logos (especially on the front) are absolutely unnecessary. While I do understand that logos are placed to advertise who made the product and such, it's not like I'm suddenly going to forget that my phone is on the Verizon network with the huge Verizon and 4G LTE logo on the back, the Verizon logo on startup, the Verizon branding on the notification shade, the utterly useless and non-removable Verizon applications, etc. And it also sure as hell isn't going to make anyone think "I'm switching to Verizon!" after seeing that obtrusive logo on the front since 95% of the time, I'm the only one looking at my phone... and I haven't forgotten which network I'm using (see above). Basically, it boils down to branding fatigue... I know what device I'm using, I know what network I'm on, I don't need a logo to shove it in my face everytime I use my device.
Making a big deal out of nothing? Yeah, pretty much... but still irritating like a splinter in your finger. It's not going to kill you but it'll definitely be on your mind.