No program capacity by RAW.
QUOTE (Page 221)
A commlink is combination computer, smartphone, media player, passport, wallet, credit card, Matrix brows- er, chip reader, GPS navigator, digital camera, and por- table gaming device. And possibly a few other things, if you’ve got a really nice one. It’s got all of the necessary software already loaded, but unlike a cyberdeck it has no space for cyberprograms or other hacking tools.
Personally, I think Commlinks could probably run half their device rating just like Drones. Page 269: "A drone has a number of slots to use for autosofts and cyberprograms equal to half its Device Rating, rounded up." I would, however, limit Commlinks to only the "Common" cyberprograms and disallow all the Hacker ones.
However, the RAW says none.