Do you know if being able to use it on a boat in the ocean will be part of v1 or v2?

I sail a bit, and I've always wanted to sail the world, but giving up a decent internet connection has always been the main deal-breaker.

v2 most likely. The currently launched satellites do not have cross-satellite links so the satellites can only provide service while they are within range of a ground station. The cross satellite links were originally planned for v1 but are behind schedule and nobody outside SpaceX knows what the current schedule is.

> in a place that doesn't have trees

What problems do trees cause for starlink?

I don't know anything specific a out starlink, but I have hundreds of days of experience trying to hit iridium sattelites while hiking in the wild. You need direct line-of-sight to sky.