I was meaning my original ruling was the house rule, device Icons can not be seen if they are slaved to a host just like icons merged with a pan can not be seen unless they are a weapon as those are specifically called out in the rules.
As far as RAW on this, the paragraph specifically says you can not interact with them so their should be an errata I think if that is RAI, but that is probably out of the scope of this game at this point. Thank you very much for your insight on the matter Adzling.
5th Core Page 246,
The virtual space inside a host is separate from the outside grid. When you’re outside of a host, you can’t interact directly with icons inside it, although you can still send messages, make commcalls, and that sort of thing. Once you’re inside, you can see and interact with icons inside the host, but not outside (with the same caveat for messages, calls, etc.).
Bold is my emphasis.