The Sony Android S Tablet is another option. You can get a used one for $200-250 or brand new for $320-$350.
http://www.amazon.com/gp/offer-listing/B005FXYJZY/ref=sr_1_2_olp?ie=UTF8&qid=1352821795&sr=8-2&keywords=Sony+s+tablet&condition=used
In addition to the WiFi remote capability (Denon/ Marantz/ Onkyo/ Integra/ Panasonic, and others), you have the traditional IR Universal Progammable remote function that lets you program and control any IR device. I control my BenQ projectors with the Sony tablet via IR. No other hardware to buy. And extremely simple to program and use.
The Sony S comes with the IR Blaster built-in. More importantly it comes with an awesome proprietary universal remote app, which you cannot get anywhere else. It allows you to change the names of the remote keys and program the functions of those keys.
Did I already say the IR remote on the Sony is EXTREMELY easy? Extremely simple, yet extremely functional. I even use my Sony tablet to remote my old Karaoke machine.
Another cool thing with Android, which you cannot get with iOS yet, is the Unified Remote app that turns your Android into a WiFi keyboard for your HTPC or any PC. So no need to buy another wireless keyboard for your HTPC.
LogMeIn is another cool tool on both Android (paid) and iOS (free). It allows you to remotely control your PC from anywhere.
I also control my home thermostat on my Android and iOS even on vacation in Cancun or Hawaii.
You can also control your home alarm system, surveillance cameras, lightings on your Android and iOS if you have the hardware.
DenPureSound (RIP) had like 12 cameras and alarm system controlled from his Android.
Of course, you can surf the web, email, calendar, To-Do List, Docments, Print to Printers via WiFi and so many other functions on the Android and iOS. I love being able to print wirelessly to my printers (doc, PDF, web, pictures, etc) directly from my iPad.
So I think stand alone remotes is old news. The Android and iOS tablets are the future.