LG’s latest Chocolate handset, the BL40 has been unveiled. It packs a 4″ widescreen high definition LCD display at 800 x 354 resolution, which is a first for cellphones. That gives you an aspect ratio of 21:9, which comes in handy for a Dual Screen UI.

It’s a beauty alright. The new LG Chocolate’s screen is overlaid with curved tempered glass seamlessly encased in a glossy black finish with red highlights. No word on pricing, but the new LG Chocolate should be available in 54 countries in Q3.

Here’s a very legit looking promo video for the company’s new Chocolate. It looks pretty awesome. Apparently the rumored 21:9 800 x 345 display is real. There’s also a nice Flash-based 3D UI, multitouch, AGPS, WiFi, 7.2Mbps HSDPA, and a scratch-proof glass screen.

It’s surprisingly thin too, even with all that. Can the masses handle something of such length? Or is it too long? We shall see.