Salesforce1 development is not immune to these issues of accidental code overwriting, inconsistent style, and problems surrounding naming things. Sometimes, in fact, the platform exacerbates these issues. Because the platform is cloud-based, the definitive copy of the code isn't stored on a central version control server, or even on individual developer's laptops. If developers are sharing a sandbox, even using the developer console won't prevent team members from overwriting each other's code changes. Other tools such as MavensMate, Eclipse, and the new Illuminated Cloud will prompt you before overwriting changes, but even this can't prevent the problem; it only warns against it.
While style and naming don't have the dramatic effects of overwriting code, they are nevertheless an issue that grows with the size of the team. Sadly, there's no platform style guide, official or unofficial. Likewise, there's no naming guide, and while Apex is case-insensitive, most file...