How do I create an observable of an array from an array of observables?

You can use .merge() to combine the array of observables into a single observable, and then use .toArray() to get them as a list in a single event.

For RxSwift 3+ use:

let arrayOfObservables: [Observable<E>] = ...
let singleObservable: Observable<E> = Observable.from(arrayOfObservables).merge()
let wholeSequence: Observable<[E]> = singleObservable.toArray()

For previous versions:

let arrayOfObservables: [Observable<E>] = ...
let singleObservable: Observable<E> = arrayOfObservables.toObservable().merge()
let wholeSequence: Observable<[E]> = singleObservable.toArray()