Depending on price point, this might be a good replacement card for my burned out Acekard. I love the idea of a Supercard DSTWO, but the price is simply too high for something I'll underutilize.
And RTS? Interesting, might make certain games more playable if I don't need to start from the beginning everytime.

The problem with real-time saving is that it only works well when you haven't turned the game off and on again yet, and it also stops working correctly if you do it several times in not-necessarily-quick succession, which means it's virtually useless. Ah well.

We actually had real-time save cartridges way back in the C64 days... google ISEPIC, Final Cartridge, etc. Their purpose wasn't to allow real-time game saving, more like a cracking tool, but some of us used them to save states in games that didn't allow saving (or didn't allow multiple saves).

The DS is a much trickier beast than the C64, but ISEPIC appeared only 2 years into the C64's life and it's been almost a decade since the DS came out. I could believe someone found a way to get the program counter and registers of both CPUs, and dumping the RAM isn't a big deal. I don't know what other state information needs to be saved... certainly things like network connectivity won't be.

Neat to still see new unauthorized DS hardware being produced. Now, if they can do even a homebrew-only flash cart for the 3DS, I might actually be tempted to buy a 3DS. Till then, I have three Android devices that'll play games, soon to be four. Not the same as the 3DS, but I'm done buying hardware I can't hack.

Really?  The RTS on my SuperCard DSTWO works great.  I can RTS, power it off, than power it on and load the RTS just fine.

...wow seriously? They're getting RTS NOW?

CycloDS had RTS for god's sake. ...but then again, Cyclo and DSTwo have specific teams which support the product, unlike the R4 which is...pretty much a free-for-all what with the clones. So it can be forgiven.

One thing that always bothered me with RTS is how it crashes the game if you do it many times. Also some games can't do RTS until you load the respective save file. (looking at you, Harvest Moon and Final Fantasy!) It's safer to ...just stay away from RTS.

Yeah, these are pretty much the things I used to have trouble with as well. Most DS games allow you to save at pretty much any time anyway (except that spooky RPG where you are a witch and encounted monsters every five seconds, and the battles are on average literally half an hour long).