Now I wish glbse supported litecoin investments using litecoin
If it doesn't, competitors will grab some of its market share

Check out
https://cryptostocks.com/ they support LTC for securities since 16th of August.
Yeah, actually I built a site to do LTC based stocks at
http://litecoinglobal.com and soon will be announcing LTC-MINING.LTC that will be listed there. People holding those shares will get dividends paid in LTC.

It's in public beta now, but there are only a few things left to develop before I take it out of beta. The cryptostocks guys were watching the litecoinglobal.com development threads and beat me out by a couple days, but I have a good feeling about Litecoin Global.
Cheers.