Relay SMS to a normal computer Is anyone aware of a way to relay SMS messages back and forth to a PC/laptop?  As in, so you could deal with texting on the computer and leave the phone sitting around wherever on the same LAN.  Any target OS is fine.

I've searched myself for this but it turns out "SMS relay" refers to something slightly different.
Android has no such native feature – but there are plenty of apps dealing with exactly this, see my collection to Send SMS remotely. The most famous candidates from that list are probably Pushbullet and MightyText.

If you want more, there are even apps to (almost) completely remote-control your Droid, see Manage your Android Device from your Computer. From this category, Airdroid is one of the favorites.