C64: Ide64, MMC64 and 1541 Ultimate (Its great) Vic20: Mega-Cart (You never need to change cart again..) Colecovision: USB Flash Cart (Atari Max) Vectrex: Sean Kellys Multicart Creativision Multicart
Those devices really make your life lot more easy and fun when you play with old retromachines at home or computer party. But there is always that special feeling missing.. When you load game from tape/disc or plugin game cartridge. Its little like iPod.. Its nice to have everything with you.. But spirit of old records is gone. Its year 2010.. Everything should be so easy.. But at old days everything wasnt so easy.. And we are missing those days retrospirit.. I wish I still had that old copy of Ghostbusters at tape that loaded 15 minutes .. Didnt use TurboTape.. Now you can load it 1-2 seconds.. After 15 minutes.. I am sure I would also play it longer.. But I am not sure if I could take those load errors anymore..
There is also a SD card floppy emulator which plugs into the floppy disk port/connector giving you loads of storage. I have the precursor to this which again pretends to be a floppy disk drive but is hooked up to your PC and transfers the files directly. It works perfectly, i did youtube vid of it in action