Sometimes, there is so much technology to go around that when it’s combined it makes one say… “Yeah, that’s cool. I guess.”

Admittedly, the idea of 3-D smartphone sounds cool enough, in that it’s different and it combines two of the hottest tech trends. So LG’s unveiling of the first one of its kind this week is exciting.

At the Mobile World Congress in Barcelona, Spain, a working model of the optimus 3-D was displayed but no release date was given. Good news – it will be “affordable”, which to me means “five bucks” but you know how arbitrary that kind of thing is.

Users will be able to do a variety of things with the 4.3-inch touchscreen including viewing video and playing games in 3-D without the need for the outright dorky red and blue lenses.

But wait…there’s more! Users can utilize the two cameras on the phone to shoot photos and video in 3-D, then hook the phone up to a 3-D TV to watch your very own three-dimensional home movies! It all sounds very, very neat.

But at the risk of sounding like everyone’s grandfather, why would I want to do that?

3-D is really cool in movie theaters or on giant auditorium screens at Universal Studios. But on a 4.3 inch screen? Watching a tee-ball game shot by a shaky-handed parent incessantly screaming “Way to go!!!”? Eh, no thanks.

You can’t fault LG for capitalizing on the growing popularity of 3-D. But will it have the legs to perform well in an increasingly crowded market? Probably, if it was five bucks.

I don’t think this is really the future of mobile, just as I don’t think the future of movies or television lies with 3D. Still, the Optimus will leave its mark as an in-the-moment niche item we will all look back on with fondness – in standard 2-D vision.