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- Elon Musk is eyeing a possible X phone.
- Musk, who owns X, formerly Twitter, said Tuesday such a device is "not out of the question."
- Musk said he'd ban Apple devices from his companies if Apple integrates OpenAI's tech into its software.
Elon Musk is weighing the idea of building an X phone amid his threats to ban iPhones and other Apple devices from his companies.