Xenon; Umm, you can get the wireless bonus if the smartgun is connected to the data jack as well? Anyway, that's a WHOLE other dicussion...
Show me where it is stated that each device HAS to connect to the matrix on it's own, I dare you

From pages 215 and 216:
"commlink (‘link):The handheld or worn personal computer used by nearly everyone to access wireless services"
Used to access "wireless services", which could imply a multitude of things.
"device: A piece of gear that performs functions integral to a network"
Including networking other devices...
"drone:An unmanned vehicle that can be controlled via direct wireless link or through the Matrix"
Implies that a drone can be connected to directly or through the matrix (aka mesh)
"jackpoint:Any physical location that provides access to the Matrix through plugging in with a wired connection."
Indicates that a wireless connection is NOT needed to access the Matrix between devices
"meshed:(slang) Online, connected to the Matrix."
See above; you do not have to be wireless to be meshed...
And then on page 219, which gives us a little bit of insight into topology:
"PANS
Most individuals have multiple electronic devices on them at once, and having icons for each one show up would provide too much visual clutter in the Matrix. Often, what shows up instead is an icon representing an individual’s personal area network. This icon often looks similar to the physical device that serves as master for the network, such as a commlink, but individuals will sometimes choose a design or logo that means something to them (such as sports team logos, Concrete Dreams album covers, or corporate designs). Some devices are not merged into the single PAN icon; if an individual is carrying a wireless-enabled gun—or any other wireless device that might kill you—it will show up separately so that it can be identified rapidly. Unless, of course, the user has gone to the trouble to hide that icon, but that’ll be covered later."
Indicating that as per the network definition above, PANs could be used to connect devices to the Matrix, "if the user has gone to the trouble".
I do not see why some of you seem to think that SR4 = Mesh Topology, and that SR5 != Mesh Topology, but I can find no evidence to the contrary in the sourcebook as the overarching hierarchy of the new Matrix is not clearly defined.
As such, we can debate this topic forever, until one of the people who actually wrote the book can tell us what is and is not possible. I for one am going to go with the fact that devices can network, and as such can use each other to connect to the matrix, EVEN WHEN WIRED, as per the "jackpoint" entry. If you disagree, that's totally cool, but utlimately it'll be up to each GM to make a call on this one because the rules are quite clearly ambiguous. Otherwise we wouldn't be having this discussion.