I don't think from what I've read that third party multi-format games are selling well on Switch at launch. Just Dance etc. I think people are buying Switch for Nintendo games or third party exclusive games if good same as wii u. This may not be true in Japan but seems to be a repeating pattern elsewhere. There is a difference now in that a Switch purchase is also a portable game purchase but from what I've read it seems more like before.
As more information comes in, it seems the Switch performance level is a bit lower with 1 of its CPU's dedicated to the background operating system. So we shouldn't expect miracles its a fairly low performance system not far above wii u. The wii u struggled with frame rates compared to ps3/360 due to its slow cpu and limited memory bandwidth and as we can see with Zelda the Switch is only a small upgrade.
From what I've read elsewhere the Switch may be the first console to be emulated within the first year of launch such is the progress of hacking it and being based on a known chipset without customisation.
I think android and ios games are the most likely games to be released on Switch, these are easy ports well within the capabilities of the console and cheap to do. Nintendo themselves will do wii u, ds, wii, gamecube and 3ds ports. We may also see some ps3/360 ports and a few ps4/xbone ports for less demanding games. However I would of thought for third parties android and ios would be the main source of games.
Not only do we have to see the Switch sales momentum continue (which it may do) but we have to see third party multiformat games sell well. Maybe Skyrim will be important in showing such demand.
Lets not forget the history though, many games appeared on wii u late and were also technically very weak even compared to 360 and ps3 versions and they sold in very low numbers. We are many years on from this and Switch can only deliver performance marginally above wii u. Here in the uk there was an offer on xbox one for £113;
http://www.hotukdeals.com/deals/new-og-xbox-one-500gb-129-delivered-111-with-code-from-sainsbury-s-groceries-2639094
You often see ps4 at half the switch launch price plus one game, around £160.
The case for buying a Switch as a home console which would struggle against ps3/360 let alone today's entry level consoles is getting weaker by the day. It's really a fantastic portable with tv output but many have bought the Switch as a home console first.
