You have to pay to release it on the app store, but thats not the issue. Its 25 bucks a year, which is pretty cheap. However it violates Apples TOS and so you can't release it in the app store because it contains another programming language on the device. You would need to modify TIOS so that it was impossible to access TI BASIC and even then you're iffy because you can load user programs that allow programming

Android emulator has terrible performance unfortunately. I can't get even close to the kind of performance I do on real hardware.

Eeems: when you try to press keys do they vibrate? If they do then the keys is actually being pressed, but the emulator may not receive it if you tap fast. Try holding down the key for a sec and see if it actually gets it. You have the same size display as me so the sizing shouldnt be an issue, at least I haven't noticed any issues with key locations. Also grab the latest build just to see if it helps at all

Yes this is how the file chooser code i stole does it. Why i have no clue. I'll fix it eventually once I get some of the more important stuff done. Auto updating is also todo, I need to figure out the best way to do it on android.
As for keys what's not working about them? I'm guessing it has to do with the skin changes I made, what size display do you have?

GG TIOS

Fixed the major core bug so now all models boot. Source is up at: http://buckeyedude.zapto.org/Revsoft/Wabbitemu/Wabbitemu.tar.gz
APK is up http://buckeyedude.zapto.org/Revsoft/Wabbitemu/Wabbitemu.apk. To use it you must have your rom saved at /mnt/sdcard/ti84pse.rom. It can really be any rom, it just has to be named as such.

Juju: What needs to be done now is a couple things. First we need a way to select file. I'm sure there are file dialogs libs out there, but I havent looked yet. Probably easiest to hook one of those up and let the user select ROM or files to load. Second is optimization. The core for the 83p is pretty good on my Inspire 4G but the 84pse is still slow. I've also had to bump down the frame rate. My drawing code is current terrible. I'm guessing the core is still pretty slow, but I'm betting the drawing code is eating up my time. Profiling is a must. Third is Setup Wizard. Obviously this is huge for the dumbass user who is downloading it with no clue what a ROM is. If you can write the GUI, I can write the backend. Another minor thing is keypresses. Currently I don't handle multiple keypresses, which means fast keypresses or trying to press two keys at once fails. On the subject of keypresses, keys should be highlighted with a rectangle so its clear what the user just pressed. Not a priority but something to think about.

A long list I know. Once those things are in place, the emulator should be very usable. There's still a bug in the core dealing with FP numbers. I'm working on tracking it down. I have a good idea what it is thanks to js795. After a file selector is up we can start testing external files. I figure throwing a couple calc84, thepenguin77, and jim e programs at it will find any remaining core issues.

By linking do you mean sending files to the calc? Or do you mean linking two calcs togethers. For the former, you can either drag and drop files or open them via File->open dialog. If you mean the latter under the calculator menu there is an option connect virtual link cable. You can press this and wabbitemu will attach to a virtual hub. You can then create another calculator via File->new and do the same thing to that calc. Those two are now connected via the virtual link cable and you can do linking between them

Can you elaborate on what you mean by images for keypresses and options for displaying the graph and table window? Keys should darken when you press them,  and graph and table window can be accessed same as the regular calc, via their respective keys