rumor has it Switch has a USB-C port, making it charge fast, and very future proof.
Also, as I have said before. I think it will be powerful enough. nVidia uses the words scaleable in its press release if that is any indicator. When we look at the Gamecube vs the Xbox, Nintendo did some things that made the system run really efficiently even with less ram and a slower processor.
On the question of RAM. Emily Rogers had the rumors that it would only have 4GB of ram. There were however rumors that Nintendo delayed the console to have a more powerful console. It also could be that certain developers were given dev kits on weaker hardware, which is a common practice. Switch is mostly a successor to Shield so, it wouldn't be surprising if they used Shields to test software in the meantime.
I really think there is going to be different versions of the tablet. Each with different levels of Tegra Processors and different amounts of ram. Nintendo is in the console/tablet/and handheld sector. Nintendo may have plans to future proof itself. Tablet tech is going to keep shrinking and getting more powerful. Nintendo is likely putting themselves right in the middle of this. I imagine Nintendo could release 3 models at different price points and as years pass people buy upgrades. Buying upgrades is great because that means you can pass them around the family or just have a spare to let your friend play on when they visit.
It is conceivable that Skyrim is a special case. There is an xbox360 version and this new hd version. It could be that docked it's the full hd version and on the go its a slightly different version. A big reasony why you would have to download a huge download for the xbox360 version was because the game is on a DVD which is only 8.5GB. Early versions of the game needed updates and had scaling slowdown because of the hardrive. Cartridges do not have this problem. Wii U would never get this game because of storage and power limitations, but NS could easily get some version of the game. The Switch has more power and ram than wii u.
As a Nintendo fan and a Zelda fan. Skyrim is actually really appealing.