Go ahead... If you want a cart w/ dead support and won't work in DS mode on your 3DS if you update the 3DS's firmware. What I mean here is, if you buy a Cyclo, you will be VERY disappointed. Buy something that actually works: AceKard, EZ Flash 5, Supercard DS2, etc.
All the DSi exclusive games that came on a cartridge are crap. All the DSi enhanced games will still run in DS mode and the enhancements were completely useless anyway. While there are some great DSiware games, you can't play it w/ a flash cart. Spending the extra money on an iEvo will get you nothing worthwhile and leave you w/ an abandoned cart that ALREADY doesn't work for the bulk of what you'll be doing w/ it on your 3DS w/ the current gen of flash carts. Seriously, pick another cart that IS NOT the iEvo.
I also recommend avoiding anything calling itself an R4. Not all R4's are bad, and if they are compatible w/ Wood that would make me inclined to give it a thumbs up. The problem is there are way too many clones that have zero support and it's hard to find a cart labeled as an R4 that will actually be a "good one".