My go-to cad programs had always been (from 1986) Acad and later, Solidworks. After Sketchup came out, Id use it to send clients crude representations of their projects, as that was the only public domain 3D program available which didnt require them to invest anything. Im retired now, but it took this long to get the app Id been looking for since 2008 when I got my first iPhone?? Oh well..... Im still an active designer though and after improvements and extensions brought the necessary features to Sketchup, its become the only program I use. And from that perspective, Im applauding Trimble for finally giving me what Ive been looking for for so many years. Ive spent the last hour or so exploring what drawings I have on Dropbox and 3D Warehouse and Im impressed. A few minor glitches, but overall, smooth, fast and accurate. Well worth the 10 bucks.