OTA data reception (web page) speed

Now that I got that demo book app working (well in a sense).....

Its takes forever to get a book down the pike from the internet.  I will zip it up [tinyline] now but still that's only a 30% reduction in speed.  Some chapters that have alot of pages.

I probably need to figure out how to use threads.  Anyway..

Are there any issues I should be aware of with this 3G stuff?  Like it will break off at 50k or comes in 2k blocks or something?  The small files are really fast and good.  The big files can take minutes even for a chapter [longer than you think it should, its like they throttle you down after so many bytes].  Is there anything I should be aware of?  TIA