I would like a few more small changes, including most of the ideas mentioned before.
-Sometimes I get lost in my environments and would like to be able to zoom out the layout to get my bearings, especially when working on low-res games, it can be difficult to tell exactly where the frame loaded. So basically I would like a bit more control over moving and viewing the layouts. A zoom feature would help to see how your levels look and get a bearing of how big or small everything is. Being able to zoom in could help you see details that are easily missed, and being able to zoom out would help programmers and designers organize their levels more. (EDIT: I now realize that I can zoom by holding ctrl and using the scroll wheel. =P)
-THE ANIMATOR SUCKS SO BAD! You need to give it a really big overhaul. Firstly, maybe a way to set custom colors at the bottom (not sure if you can or can't but I don't know how) and definitely an animation previewer. It is really frustrating to have to keep loading the application just to see how something animates. Fix the small bug in the animator that if you click the up arrow on the color selector when it is at 255, the whole program crashes. Just put a block there. Also, make the boxes in the colored checker grid in the background a full pixel in size. It is confusing when working with retro art, how the boxes in the background don't line up with your art. Overall just make it more user friendly!
-I would like to see more ways to export games, such as flash, or a different type of internet gaming option, as well as the ability to make games for mac users and the like. All of this has been mentioned already, so I won't repeat it all.
-There is another small error I've noticed, that Mr. Ksoft mentioned already. In the editor, if you try to click on a group or an event that is near the top or bottom of the screen, nothing happens, and in order to click on it, you need to scroll down first. That should be fixed. Also, the program feels unresponsive at times, because of how long it takes to respond. Like Mr. Ksoft said, make the program feel more responsive and stable.
-I like the idea of being able to place objects in a type of tiling format. That would really simplify everything. You could just select different tile sets, and set each graphic. Then using a tiling tool to easily place objects would really help everything get done smoothly and about a thousand times faster.
-I hate the little sprite ribbon on the side, but I love it too. I just wish that it would be easier to manage all of your sprites and the layers they are on. A few features for that that would be nice are: NOT having it always scroll back up to the top every time the order of something is changed; being able to drag objects up or down to easily change what is placed where and what goes in front of or behind something else; the ability to organize it different ways with the click of a button, such as alphabetic mode, or z-order mode, etc. I really like this toolbar but it desperately needs help.
- I would like some sort of ability to make projects easier to work on by groups. That should include some sort of easy way to copy and paste new objects from different games (or versions of the same game) into each other. I would also like the ablility to split up a game so that different people can work on different aspects of the same game at the same time, then be able to put the two halves (or however many there are) back together again, and have the changes each person made to be saved. Now, only one person can work on a game at a time, and in cases such as my own, where me and Mr. Ksoft are both working on the same game, we have to take turns, and if we don't then one person has to look at the changes the other made, and do it all from scratch on their own copy. It would be easier if one could just copy the changes and add them to the original game.
I think that's about all I can think of for right now. If I think of more, I'll post more, but keep in mind that a few of the simpler suggestions I made could easily be put into C1 before the final version comes out. (which is what I'm hoping for)
-Oh and for C2 specifically, there should be an option when starting a new game, the ability to pick what kind of game it will be, from a bunch of different basic styles (platformer, RTS, puzzle, shmupper, etc.) and the new file will start with a few generic but necessary changes, such as the lack of scrolling in puzzle games, or some set of basic event groups for whatever type of game it is. The second choice you should have is the ability to pick whether the game will be in 2D or 3D. That way there will be no confusion about what kinds of objects can be placed and such. I would really like to see cooler 3D games in C2, such as simple FPS's like DOOM and 3D exploration games, or simply the ability to switch to virtual 3D realms to 2D ones easily.
... not sure if any of that makes sense or not, I'm pretty tired...