I contacted the company a while back and they said that they were going to be upgrading the EL8 to include a Li-Ion cell phone battery and increasing the solar output to 130 mAh. I bought one of the earlier versions from Amazon along with the cell charger cable and this thing works great!
It puts out plenty of light on the trail and I can charge my cell phone from it (not that I make a lot of calls from the trail, but I have before). It's kinda like having my ole Solio and petzl with me all in one unit. I just strop the little solar panel to my pack and away I go. Plus, I don't have to worry about throwing away spent batteries either. Yeah, I'm turnin "Green".
They also have cables that will charge iPods, GPS's, etc. I'll be getting the upgraded version when it comes out supposedly in May. It's supposed to be a lighter, brighter, long lifer.
I recommend it.