There already is a plugin for Eclipse. It's called "Sloeber". Actually I think there are two of them but that's the most popular one.
So I installed the eclipse plugin (Sloeber) into my existing version of Eclipse using this URL:http://eclipse.baeyens.it/update/V4/stableIt all seemed to go ok, restart eclipse, tried to add File->New->Project and Arduino was listed. After selecting a new sketch and location, the 'Finish' button never enabled. The 'Next' button did nothing. So I was stuck not being able to create a new ARduino project at allrSo I'll see if I can fix it. But a big thumbs down so far.
Ok, so now you have found out why Arduino uses a simple IDE rather than the huge and complex Eclipse.Eclipse is often going wrong in some very weird way, you get used to it. Eclipse is more advanced, but that meant you more advanced problems to solve.
Well, you can't really blame Eclipse for a plugin not working. I've been using Eclipse now for about 17 years and this is the first plugin I've used which actually plain doesn't work. Agreed that Eclipse can be a bit of a dog to say the least - config stuff all over the place and you have to dig around a lot to find out what to set and where it is but generally you can get most things working. You have to learn to do the 'Eclipse Dance'! But in this case, I cannot even create a new Arduino project so it's a show-stopper. So back to gedit
it becames very difficult to follow small character on white background.