So I've never done this, but I figured the best way to start was to just jump in and do it. I have gone through and edited master(aa24dbc) to build against forge 848. The parts that weren't valid anymore I would look at code from MC itself that I knew should be similar (i.e. the way it bound the texture for the crafting table gui to know how to do all the bindTextures in all of the guis, etc.). So I'm fairly confident that it's right, but, as I said, I have never done this before. It builds perfectly, but then when I take the built jar over to MC mods folder it doesn't get loaded. The log file says this on the matter:

2013-09-05 05:06:09 [FINE] [ForgeModLoader] Examining file ee3-universal-pre2-26.jar for potential mods
2013-09-05 05:06:09 [FINER] [ForgeModLoader] Located mcmod.info file in file ee3-universal-pre2-26.jar
2013-09-05 05:06:09 [INFO] [ForgeModLoader] Forge Mod Loader has identified 3 mods to loaded

If you would like I can attach a pull request so you can see what's up.

I'm very interested in seeing this on 1.6.2 for a modpack I'm doing, so I figured since the source is here anyways I would try to help make that happen^^
Thanks!

Why would you use forge 848 and not 849+ that has the new mcp names? :s
Also check the contents of the created jar, it's probably missing stuff if those three lines are the only ones in our log.

What changed in forge was the MCP names were updated.

The stones haven't been working as they do in pre1 for months now. It's all part of the work on DynEMC.

Is there a post somewhere I can catch up on the intended changes? or do I need to just read through the commits?

When using trunk, read the commits. Things change daily if not hourly

I meant more big picture like "you no longer transmute by using a minium stone in a recipe, now you do X" but fair enough.

There isn't finalized documentation or anything outlining the eventual end state of EE3. You will have to wait for that. In the meantime, pre2 is the version coming for MC 1.6.2 and is unfinished. Don't expect things to work the same in pre2 as they do in pre1. Be patient - this is not currently ready for modpacks.

A "roadmap" to see what you intent to do would be cool,
so we could do some things for you (and speed up development)

it's what my mod pack is built against... didn't know that much had happened in 1 version^^ guess I'll roll back and try again^^

And this is what happens when you include nightly builds of mods in a modpack :-p

That was just my drive to port it/help. The porting itself wasn't affected by that. I just didn't think that much would change in 3 versions of forge^^; It builds and loads now, but I guess you changed the recipes or something be cause the stone doesn't work how I expect.

That was kinda what I was getting at Robtotic-Brain^^