I have the SM-9000 and it is fantastic. Got it specifically shipped in from Netherlands as they are not available anywhere in my country. I actually got two, because why not :)

Initially got it for gaming at night (so that my girlfriend can sleep without being bugged by constant clicking). I don't think the response time is a major issue (*salutes* Major Issue), but then again I don't really play any games that required a really fast response time...I don't do first person shooters. The closet I came was perhaps Diablo III and there was little-to-no issue with response time and no noticeable lagging.

Since I have been using the one at home for almost two years now and been loving it, I have dedicated the other one to work use. The lack of a click sound did concern me at first but the tactile response is still there so you really don't miss out on the audible confirmation of a "click". In fact, I find using a mouse with a clicking sound a bit strange now.

After two years of use the scroll wheels have become a bit erratic (scrolling up goes down sometimes and sometimes doesn't work altogether) and on one of them the left button has become a bit unresponsive, meaning sometimes it wouldn't click, and sometimes it would automatically double click. These issues aside...it is highly recommended for those who want to let their girlfriend sleep soundly at night. Or those in a fairly quiet office environment, or even those who just want to try something new and innovative.

A two year life-span a little bit disappointing, although still worthwhile as it has not completely packed up.

Battery life is also pretty decent, despite no on-off switch. I use rechargables and recharge them maybe every two months, if that.

Now if you will excuse me, I'm am going to order two more to replace these old ones :)

hey, i really liked the mice but what keeps me thinking is that the sm7000,8000,and 9000 dont have a on/off switch... is there any other nexus WIRELESS SILENT mouse with an on/off switch other than the sm5000?? really liked the vid xD

i would go for the SM-8000 for a regular mouse but for gaming only use corded mouse.

OMG, I want one of this mouse!

Nexus SM-5000 change any button software.
http://www.nexustek.nl/nexus_sm-5000_silent_doublescroll_mouse.htm

are these any good for gaming? I like the idea of a wireless mouse, but I always read that wireless mice aren't any good for gaming because of response time.

For those wanting to purchase a silent mouse, check out http://www.EndPCNoise.com

Are there also left handed versions for these mice?

SM-5000 should be SM-9000.
SM-7000 should be as it is, SM-7000.
SM-8000 should be as it is, SM-8000.
SM-9000 should be SM-5000.

So in that case, from top to bottom:

SM-5000 > SM-8000 > SM-7000 > SM-9000

This defeats "bigger numbers are always better."

They all look great but the quiet clicking, I actually like to hear my mouse click, helps me time things in games, if my current mouse was quiet, I'd think it was broken, I guess in my case it would but other then that they look nice maybe a little small and I'm not a fan of wireless but I'm sure there is plenty that are fans of wireless.

I guess its just not a review for me, sense I'll probably never buy a wireless mouse but if I did, I'd take a look at these in the store.

Aside from a studio environment, I can't see there being much point to these. They are a bit cheaper, but I still prefer a mouse with more on the software side of it. Logitech for example, lets you change any button on the mouse to do pretty much anything and it's really easy to do so. I don't know what the software for the Nexus mice looks like, but I doubt it compares. Also, I find it funny that a google search for one of the nexus mice in this review brought up a plethora of things before it brought back a result of the company's actual site. >_<