Let's not forget that Festool had a much bigger rang of tools when they had Protool's full range. When it comes to new products they seem to have been more hampered taking 240V products to NA in 110V. This is not a problem for cordless in any way.
When I suggest that Festool "needs" to extend it's cordless range, it needs a way to stay relevant as the competing brands address niche areas. We can see was the flurry of new track saws, other brands are standing still.
Imagine what a radical change it would make if (lets say) European tool makers came up with a standardised cordless battery connection. All of a sudden Bosch, Metabo, Festool, Fein, Mafell, etc, etc would be smashing the big brands and pressuring them to conform.
I would love to see Festool kick off a battery compatibility initiative by building compatibility with Metabo - love their LiHD batteries (though the Hitachi merger may seriously inhibit Metabo from being a prospect).
Seeing this thread is about impact drivers ... I'd buy a Makita DTS141Z oil impulse impact tomorrow if it worked with any of my existing batteries. I'm not really a Makita fan, but you can understand why people would choose Makita as their base for cordless - the range of tools is massive including bicycles, coffee machines, etc [eek]
Now I'm not naive, obviously tool brands want you to be locked into their systems and go from buying an initial tool or tool set to continuing with the rest of their range in a "locked in" way.