Just a few requests for the graphs:

 1.) Would it be possible to add a graph for the %Market share relative to the selected consoles?  I think it would be an interesting to see as sometimes total sales or weekly sales don't paint a full picture of the current state of the generation

 2.)Would it be possible to have "none" as a platform suggestion, so you could view just one or 2 pieces of hardware without needing to put in a supurfluous 3rd platform

 Just some suggestions

regarding point two...just select one of the consoles again for the same region...you will only see two lines.

Well part 2 was kind of derived from part 1, having the same console twice would skew the % market share (providing it was implemented) as I would imagine it would be a basic (lifetodate console X sales)/(sum of selected console LTD sales) calculation

I see your point...what are you trying to see? 360 vs. PS3 market share? Or just in general? What kind of results would you expect to find using this method?

What the market share of sales is because i notice now that the PS3 market share is rising with the Wii market share and the X360 market share drops every sales update.If the graph showed market share, weekly sales then you would see current trends.

just in general any hardware vs any hardware (vs any hardware) as something like a big sales surge industry wide might be misleading when looked at from a one console perspective, when said console may (or may had) lose (lost) actual market share due to the sales of other consoles.

it would be a bit strange being able to compare any console to any console market share, i mean what would gameboy versus 360 be about?

oh wait i get it, you mean respective market share, so if you were to compare 360 and gamboy both would start at 100% .... 360 would be market share compared to ps3/wii (even though they aren't on the graph) while GB would have no competition until gamegear/other handhelds came along.

then again it all depends on generation for that, which complicates things for GB because it lasted so long, with a number of hanhelds born and dead within its life.... also would be complex for SNES/Ps1 because they are in different generations, but in all reality ps1 was taking m/share from SNES.

i think the only thing you could have really is a graph for this gen, because its much simpler with everything releasing close together.
So one graph for consoles [360 starts at 100% until Wii/ps3]
and one for handhelds.

^ wouldn't really show much come to think of it, you can get vague ideas of m/share by looking at the LTD graphs and working it out in your head. edit; about your post just above mine,.. you are trying to say a sales surge would only be visible for one console, but if you are comparing it to the other 2 consoles you'd see them surge too [and surge more in your scenario above]

Then you pick the market share choice by generation not by console.

What I mean by that, is if you look soley at one console, you would think "wow, Console A did really well" but that might be misleading (such as around xmas time) unless you compare them to other console sales. If you see, wow, console A lost 5% market share, its more revealing than seeing it sold X number of units