only reason i prefer dell's 2007wfp and 2407wfp is because it's ability to rotate to be able to read in long format

Perhaps it's because i am newbie I find it useful to be able to read doc(pdf or chm files) in long format
while programming. Therefore I wanted to get another 2007wfp but wondering if 2407wfp gonna do the job alone (instead of dual setup)