Upon receiving the device, I immediately followed the upgrade firmware instructions on the manufacturer's website. Generally, the device is good as an entry-level for those wishing to enter into Android devices. The memory is sufficient for the running of one foreground application and 2-3 background applications (like a memory monitor, Scanner Radio and Twitter). Apps upgrade via Android Market; and other markets are installable (that are compatible with Android Eclair 2.1). It is recommended to purchase/install a MicroSD card in the device, as some apps seek an external card to store data. The Wi-Fi is not very strong, but it does perform well with a reading of above-Fair signal, your results may vary with access point and device conditions.
Those selling devices often confuse processor, memory and disk space: this device comes with an 1GHz processor (divided between programs [600 kHz] and Video [400mHz]), 256 MB of Random Access Memory and 4GB of on-board hard-drive space via an on-board flash drive, with the ability to add up to an additional 32GB via MicroSD (for a total of 36GB hard-drive space), plus more via the USB host feature. It's like having an early 21st century PC in your pocket/purse.
I have personally noted that the screen calibration tool sometimes appears at odd times when hitting the ESC or MENU buttons (usually with programs that End-Run by hitting those buttons); and once caused a need for a reset after freezing on calibrating the 3rd position while market-installed Battery Dr. was running). Sometimes, the device doesn't not power on, resetting or plugging in the device fixes this. USB Debugging and Non-Market installs are enabled by default; that's not so good for security with new Android users. There are two Youtube players available by default, one appears to be the US version (that upgrades via the Android Market), and the other the Hong Kong version that upgrades via apkok.com; this is redundant, as both appear to load similar content by default. The speaker is on the rear of the device, and sound is low if the opening is covered; if using a Tablet case, it's position should be taken into consideration. The battery appears extremely erratic in its readings at first, being sure allow a full discharging and full recharging of the device is suggested for resolution. The battery appears to have a life of 2-4 hours in use and 8-10 hours in screen standby (longer when Power Off is used).
The USB port, HDMI-out and USB Micro port connections are a plus. All-around, the Curtis LT7028 7" MID Android 2.1 4GB is a good device. The screen is completely usable without the included, short stylus, but it provides greater precision. The trackball is another Human Interface Device available for added convenience. I have successfully used USB thumb drives and keyboards with the device in USB Host Enabled mode. Definitely recommended for users seeking a secondary SOHO device, something for the family to use on a WLAN at home or vacation, a device to quickly to place video on a full-screen display, or corporate WLANs needing WI-FI Android software for their employees moving about the Network campus!