No harm in buying something portable. I bought a BLUE microphones Digital Mikey, which gives me stereo microphone recording capability with my iPhone, but at home, I'm using a TASCAM US-800.

The only thing I caution you against is that in my opinion, TASCAM has one of the worst customer service attitudes in the industry. If you have a product without technical issues, no problem, but if you have one which has quirky drivers and so forth, you are left to fend for yourself.

The US-800 story shows how they handle poorly designed hardware/software. This product has known issues with the drivers. Rather than work on a driver set that actually works, they simply put the product on fire-sale and quit building it. The US-series of products used to go US-144, US-200, US-400, US-600, US-800, US-1200, etc.

Once the US-800 came out and they couldn't fix it's memory leak issue with the first update to the drivers, they simply quit trying. At least that's how it appears to this customer.

I will never recommend their products to anyone with how they behaved with this particular product.

For a whole bunch of threads on all kinds of different forums about how US-800 actually functions, simply type in "US-800 memory leak" into Google and see what pops out.

I believe that KeithS on our forums here is one of the TASCAM support forum moderators. He might be able to vouch for whether the TASCAM unit you are considering for mobile use is reliable or not.

-Scott