SEATTLE ( TheStreet) -- Amazon.com ( AMZN) plans to open an online applications store for smartphones running Google's ( GOOG) Android software, the Wall Street Journal reports, citing people briefed on the Internet retailer's plans. Amazon's entry into the mobile-applications marketplace would compete with app stores from Apple ( AAPL) and Google, which created the Android operating system. Some developers who have been approached by Amazon about the new app store said they haven't been told what the store will be called or when it might open, the Journal reports. According to an Amazon document for developers viewed by the newspaper, Amazon would take a 30% cut of app sales, with the developers keeping the rest. Apple and Google charge the same commission fee for their stores, the Journal notes. An Amazon spokeswoman told the Journal "we don't comment on rumors and speculation." Google also declined to comment. Technology Web site TechCrunch first reported Amazon was planning an app store. -- Written by Joseph Woelfel >To contact the writer of this article, click here: Joseph Woelfel >To submit a news tip, send an email to: firstname.lastname@example.org.