Iridium's partner for satellite-based smartphone services turns out to be chipmaker Qualcomm (QCOM), though Samsung could still figure in its plans. Investors will mull how much upside there is for IRDM stock now that the suspense is over. X Iridium (IRDM) late Thursday said it will partner with Qualcomm for satellite-based, two-way text messaging services. Also, the companies expect availability on the services in the back half of 2023. New smartphones will need to be equipped with Qualcomm's 5G modems. "As opposed to working directly with a single smartphone OEM (Samsung), we believe this partnership on the chip and technology...