After months of talk about whether Twitter was going to delve deeply into mobile marketing, the company announced that it will debut mobile app install ads as a beta product today. The ads will run as a part of Twitter’s mobile app as well as on MoPub, Twitter’s recently accrued mobile ad network. The goal, of course, is to build revenues across the board as Twitter continues to struggle to post revenues after its IPO, and today’s news will give the company’s investors hope that Twitter is heading in the right direction. Twitter has a few partners immediately lined up for the release, including Spotify, HotelTonight, Deezer, Get Taxi, and others.