Nintendo Switch Online launches in September and it is a paid service similar to Xbox Live and PlayStation Network. It’s cheaper than both and Amazon UK is currently listing the various subscriptions you can subscribe to. If you wish to pre-order a Nintendo Switch Online code, which yearly costs £19.99, then you can do so here.
£2 more than listed on announcement :(
Still comes with broken voice chat :(
A preorder.. for the online service? Very strange.