Since this does have an audio input for connecting other audio devices, you can use it as a speaker for your PC. The only problem is that if you dock your iPhone or iPod for charging (sorry, it doesn't accommodate the iPad Mini), you can't play music through the auxiliary port.
The 30-pin Fidelio DS3000 features a USB input for pass-through syncing with your PC (it doesn't charge other devices, however). This model doesn't have USB connectivity of any kind, so you can't charge a secondary device.
Probably the DS3205's biggest strength is its sound. It plays louder and offers richer sound than Philips' smaller DS1155. It doesn't sound fantastic, but most people will be impressed by what it can output for its size and its ability to fill a small room with sound. Like all these compact speakers, because the drivers are so close together, you'll get little in the way of stereo separation unless you're sitting or standing a few feet away. But at least the DS3205 sounds comparatively clear and has some punch to its bass.
As I said in the intro, I liked the DS3205 and thought it sounded good for its size. What hurts it a bit is the lack of a USB port -- for either charging a second device or pass-through PC syncing -- and that it's not capable of playing audio through its auxiliary port when you have a device docked. (You should be able to use the unit as a speaker for your PC while charging your iPhone or iPod.)
From a value perspective, my impressions are influenced by the fact that at the time of this writing, the earlier Fidelio DS3000 is selling for less than $70 online. The DS3205 costs $129.99 and is very similar except for leaving off the USB port and adding the Lightning connector. Yes, I know it costs Philips more to implement the Lightning connector (I don't have time to get into Apple's licensing fees), but you could buy the $25 30-pin to Lightning adapter and get away for less by getting the older Fidelio DS3000.
Over time, I suspect, the DS3205 will come down in price. When it does, I'd consider raising its score. For now, I can recommend it -- but with reservations.